The Southern Palestine offensive, began on 31 October 1917, with the Battle of Beersheba, when the British Empire's Egyptian Expeditionary Force (EEF) under the Command of Field Marshall Edmund Allenby attacked Ottoman Empire forces at the town of Beersheba during the Sinai and Palestine Campaign, of World War I. After the capture of Beersheba, by the EEF, the Gaza to Beersheba line became increasingly weakened and, seven days later, the EEF successfully forced the Ottoman Turkish Empire's Seventh and Eighth Armies to withdraw. During the following seven days of pursuit, the Turkish forces were pushed back to Jaffa. There followed three weeks of hard fighting in the Judean Hills before Jerusalem was captured on 9 December 1917. During five and a half weeks of almost continuous offensive operations, the EEF captured 47.5 miles (76.4 km) of territory.

After a joint attack by the XX and the Desert Mounted Corps, Beersheba at the eastern end of the Gaza to Beersheba line, was captured. The next day, on 1 November, the Battle of Tel el Khuweilfe began, with an advance north of Beersheba into the Judean foothills, by the 53rd (Welsh) and the ANZAC Mounted Divisions. This move up the road from Beersheba to Jerusalem, also threatened Hebron and Bethlehem. Then, during the night of 1/2 November, the Third Battle of Gaza took place on the Mediterranean coast, when limited attacks by the XXI Corps were made against strongly held, formidable defences. The next day, the fiercely contested fighting south of Tel el Khuweilfe by the EEF was not designed to capture Hebron, but to create sufficient area for the deployment of the XX Corps, for a flank attack on the central defences of the old Gaza to Beersheba line. Fighting for the Beersheba to Jerusalem road, also encouraged the Turkish commanders to deploy their reserves, to hold the EEF threat. On 6 November the Battle of Hareira and Sheria was launched on the centre of the old line, half-way between Gaza and Beersheba, and Hareira was captured; but it was not until late the next day, that the Sheria position was finally captured by the 60th (London) Division, after a failed charge by the 4th Light Horse Brigade (Australian Mounted Division). The Seventh and the Eighth Armies were by now in full retreat from the remains of the old Gaza to Beersheba line.

On 7 November, the second day of the battle for Hareira and Sheria, the 52nd (Lowland) Division and the Imperial Service Cavalry Brigade advanced unopposed through Gaza to attack strong rearguard positions at Wadi el Hesi, which were captured the next day.

Background

On the edge of the Eastern Desert

After the first two battles for Gaza, it was obvious to British commanders that large reinforcements were needed "to set General Murray's army in motion again."[1] Indeed, Murray made it clear to the War Cabinet and the Imperial General Staff early in May, that he could not invade Palestine without reinforcements.[2] The War Office assured him in the same month, that he should prepare to receive reinforcements, which would bring the Egyptian Expeditionary Force (EEF) up to six infantry and three mounted divisions.[3] However by July, when General Edmund Allenby took command of the EEF, 5,150 infantry and 400 yeomanry reinforcements were still needed after the casualties suffered during the battles for Gaza.[4]

By the end of the 1917 summer in the northern hemisphere, the political and the strategic interests of the British government and the EEF coincided. This was due in part to the failure on the Western Front of the French Republic's Nivelle offensive and the success of the German submarine campaign against British Empire shipping.[5] The destruction of British shipping caused severe shortages in Britain, and although the United States of America had entered the war, their military support would not be apparent for some time. Britain was about to enter a fourth year of extremely costly war, and their Prime Minister, David Lloyd George, appreciated the need to take into account the "Home Front." He believed a striking military success could bolster the morale of the civil population, and he told Allenby that "he wanted Jerusalem as a Christmas present for the British nation." Lloyd Gorge made clear that this victory was needed in order "to strengthen the staying power and morale" of Britain.[6] The British War Cabinet needed a successful Palestine offensive at a time when there was not much good news coming out of the Western Front, and when it was beginning to look like the war could extend into 1919. If they could capture Jerusalem this would put pressure on the Ottoman Empire, which could in turn place a strain on the German alliance, at the same time enhancing Britain's long term aim of strengthening their influence in the Middle East. By the end of October, the EEF was ready to attack.[5][7]

The decision to launch a major offensive in Palestine, in the autumn of 1917, was also based on "very sound strategical reasons." The collapse of the Russian Empire in the spring led to the withdrawal of Russia from the war, as a consequence of the Russian Revolution, and freed up large numbers of Ottoman Empire troops, which had been fighting the Russians on the Eastern Front. These Ottoman units became available to reinforce the Palestine front and were in the process of assembling near Aleppo, along with German soldiers and equipment. They were to launch operations to recapture Baghdad, which had been captured by the British in March. The threat to Baghdad could be more economically opposed by an EEF offensive in southern Palestine. Rather than sending reinforcements to General Frederick S. Maude's Mesopotamian army holding Baghdad, British reinforcements from the Salonika front, which the War Office wanted to scale down, would strengthen the EEF.[8]

Allenby's strategical objective was a defeat of the Ottoman army in Southern Palestine, decisive enough to ensure Ottoman reinforcements destined for Baghdad were diverted to Palestine.[8] However, by 5 October, General William Robertson, CIGS, telegraphed Allenby that the War Cabinet desired him to eliminate the Ottoman Empire out of the war by a "heavy defeat", followed by the occupation of the Jaffa–Jerusalem line. He was to be supplied with "fresh British divisions ... at the rate of one every sixteen days." It was not until after the launching of the offensive that Allenby was told such increases to his force were improbable.[9]

A military railway bridge over the Wadi Ghazzeh, with water storage beyond. EEF horses watered in this vicinity during September and October 1917

Allenby estimated the Ottoman Army could have 20 divisions, with no more than 12 on the front line. However, as these could be replaced by the Ottoman Army, the EEF could not field more than 14 divisions after the doubling of the railway line from Kantara, because of the limitations of the EEF's supply lines.[9] Between April and October 1917, both the EEF and the Ottoman Army laid railways and water pipe lines, and sent troops, guns and huge quantities of ammunition to the front.[10] By mid-October 1917, a staff appreciation from London acknowledged the strength of the Ottoman defenders in Southern Palestine, and that any attempt to dislodge them from the Gaza to Beersheba line could cost three divisions. The appreciation acknowledged that "[T]he Turk is a stubborn fighter in trenches and we must expect that in any event he will stand long enough to cause us serious loss ... we must be prepared to supply General Allenby with three more divisions" to relieve weakened divisions.[11]

Battlefield

The Gaza to Beersheba line was defended by both sides during the Stalemate in Southern Palestine from April to the end of October 1917. The EEF front line extended for 22 miles (35 km) from the Mediterranean coast at Gaza to a point on the Wadi Ghazzeh near El Gamli, about 14 miles (23 km) south-west of Sharia and 18 miles (29 km) west of Beersheba on the southern edge of the plain of Philistia. On the coast, a strip of sand dunes varying between 2 and 4 miles (3.2 and 6.4 km) wide was impassable for wheeled vehicles. Between the sand dunes and the Judean Hills, which rise to 3,000 feet (910 m), the mainly undulating "down-land" plains stretched between 15 and 20 miles (24 and 32 km) wide. The plains were intersected by many wadis, which transformed into "raging torrents," rushing down from the bare rocky Judaean mountains during the wet winters. The region was sparsely populated, with each village depending on its well for water, while crops of barley were grown. From this area, the topographical conditions of the plain are unchanged for 80 miles (130 km) northwards, becoming the Plain of Sharon from Jaffa, to finally end at Mount Carmel near Haifa.[12]

Prelude

The Ottoman Army in Palestine commanded by Marshal Erich von Falkenhayn was nearly 50,000 strong, while General Allenby’s EEF was 76,000 strong.[13]

Defending force

Until June 1917, Sheria was the headquarters of the German-commanded defenders holding the Gaza-Beersheba line.[14] In August 1917, the Fourth Army was structured as:

  • Fourth Army (Syria-Palestine)
      • 3rd Cavalry Division
    • VIII Corps
      • 48th Division
    • XII Corps
      • 23rd Division
      • 44th Division
    • XV Corps
      • 43rd Division
    • XX Corps
      • 16th Division
      • 54th Division
    • XXII Corps
      • 3rd Division
      • 7th Division
      • 53rd Division[15]

The Fourth Army in Palestine was reorganised into two corps, the XX Corps was expanded from the 16th and 54th Infantry Divisions to include the 178th Infantry Regiment and the 3rd Cavalry Division, while the XXII Corps' three divisions remained unchanged.[16] The XX Corps was headquartered at Huj, while the XXII Corps defended Gaza with the 3rd and 53rd Divisions.[17] By July the Eighth Army commanded by Friedrich Freiherr Kress von Kressenstein consisting of six infantry divisions and one cavalry division, had an estimated strength of 46,000 rifles, 28,000 sabres and 200 guns.[18][19]

Yildirim Army Group

Ottoman Arab Camel Corps

Germany had suggested that six or seven Ottoman divisions released as a consequence of the Russian Army's withdrawal from the war, should attack Mesopotamia with German support. Germany would supply ammunition, equipment, troops and gold along with one of Germany's "most distinguished soldiers", Erich von Falkenhayn, and an Army Headquarters staff. These German reinforcements included the German Asia Corps, three battalion groups of "handpicked and thoroughly trained" infantry, very strongly supported by artillery, machine guns, mortars, aircraft and mechanical transport. The Ottoman Empire would contribute a new Seventh Army made up of divisions transferred from the Caucasus and the Balkan fronts.[20]

Following the formation of the Yildirim Army Group in June 1917, substantial forces were deployed to Syria and Palestine, where they continued to hold the Fourth Army defences. Already in Palestine were the 3rd, 7th, 16th, and 54th Infantry Divisions while the 26th 27th, and 53rd Infantry Divisions arrived during the summer. The 3rd, 7th 16th, and 26th Infantry Divisions had fought in the Gallipoli campaign and the 3rd Cavalry Division had fought in the Caucasian Campaigns. These seven infantry divisions and one cavalry division formed the recently activated Ottoman Eighth Army.[21][22]

On establishment, the Yildirim Army Group consisted of Ottoman Army troops already in Palestine and Mesopotamia. These included the 19th and the 20th Divisions from Galicia, the 24th and the 42nd Divisions from the Dardanelles, the 48th Division from the Caucasus, the 50th Division from Macedonia and the 59th from Adana in the Gulf of Iskanderun. The 1st and 11th Divisions were also transferred from the Caucasus to the Yildirim Army Group, arriving in time for the attempt to retake Jerusalem at the end of December, and in March 1918 respectively.[23][Note 1]

In August 1917, the Yildirim Army Group consisted of:

The total infantry "rifle strengths" for the 12 units on 30 September was 28,067 plus the 19th Division's 4,000 giving a total of 32,067 rifles supported by 268 guns. The two 3rd Cavalry Division regiments in the area had 1,400 sabres, while the third regiment of the division was deployed east of the Jordan River.[24] These rifle figures at 30 September overlook the 25% of rifles of each infantry battalion, which were progressively replaced with machine guns, beginning on 10 August 1917.[26]

By mid-September 1917 the Ottoman Army had decided against the attempt to retake Baghdad. Enver Pasha took von Falkenhayn's advice to send the Yildirim Army Group to Palestine, to face the growing threat reported by Kress von Kressenstein. Enver Pasha issued orders on 26 September for the Fourth Army headquarters to move to Damascus, at the same time dividing the area in half, leaving Cemal Pasha with responsibility for Syria and western Arabia. On 2 October, Enver Pasha activated the new Eighth Army, commanded by Kress von Kressenstein, and deployed it along with the Seventh Army, commanded by Mustafa Kemal, to the Yildirim Army Group, commanded by von Falkenhayn. However, in late September Mustafa Kemal disagreed with some of Enver Pasha's decisions and the new command structure. He advised adopting a defensive military policy, in response to the superior British lines of communications, which would ensure continued numerical superiority in any contested theatre. He thought this imbalance would make it impossible for the Yildirim Army Group to go on the offensive. He advised merging the Seventh and the Eighth Armies, offering to step down in favour of Kress von Kressenstein. Several weeks later Mustafa Kemal resigned and Fevzi Pasa took command of the Seventh Army which was still assembling near Aleppo.[27] By October 1917 the headquarters of the Eighth Army commanded by Kress von Keressenstein was at Huleikat to north of Huj.[28]

These massive reorganisations began to be implemented in October, but by the end of the month, only the headquarters of the Seventh and Eighth Armies were in position to take the field.[29] On 1 October, the Eighth Army consisted of 2,894 officers, 69,709 men, 29,116 rifles, 403 machine guns, 268 artillery pieces, and 27,575 animals.[30] Between 10 and 28 October 1917, the Eighth Army shifted three infantry divisions to reserve positions, although the defence of Beersheba remained the responsibility of the Ottoman III Corps, consisting of the mainly Arab 27th Infantry Division, and the 2nd Infantry Regiment "minus its machine guns," with the two regiments of the 3rd Cavalry Division.[31]

On 28 October, orders were issued by von Falkenhayn's Yildirim Army Group headquarters, directing Kress von Kressenstein's Eighth Army to assume responsibility for the western, or Gaza half, of the Ottoman front line, while Fevzi Pasa's Seventh Army took responsibility for the eastern half including Beersheba. The III Corps headquarters which commanded the 27th Infantry Division and the 3rd Cavalry Division was transferred from the Eighth to the Seventh Army. The 16th and 24th Infantry Divisions and the 19th Infantry Division on its way south were also assigned to the Seventh Army.[32] Both the 19th and 24th Divisions arrived before the battle began.[23] Kress von Kressenstein later described the 27th Infantry Division defending Beersheba, as 'badly trained, badly organised, and composed of Arabs who had to be watched'. He recommended the division be deactivated and its soldiers deployed elsewhere as reinforcements. He suggested the 19th Infantry Division, Mustafa Kemal's "famous Gallipoli division," replace it at Beersheba.[31] Regarded by the Ottoman General Staff as the most powerful infantry division in the Ottoman Army's order of battle, the 19th Division which had also served in Galicia, had an unusually powerful artillery component. The commander of the Yildirim Army Group, von Falkenhayn, ordered the 19th Infantry Division moved into reserve near Cemame [Jemame?] nearer to Gaza than Beersheba.[31]

By 31 October, nine Ottoman infantry divisions and one cavalry division with a total strength of up to 45,000 rifles, 1,500 sabres and 300 guns defended the Gaza to Beersheba line. Gaza was defended by the Eighth Army's XXII Corps, with its XX Corps defending Sheria, while the Seventh Army's III Corps defended Beersheba. The recently arrived commander of the Seventh Army, Fevzi Pasha, "played no active role in command during the early stages of the third battle of Gaza and the entire front remained under Kress's control."[33]

Assault battalions

Each infantry division was reorganised into three infantry regiments, each consisting of three infantry battalions, and one assault battalion. The specialised assault or storm troop divisions of the German Army were never formed by the Ottoman Army.[34] However, the assault battalions were established by order of Enver Pasha on 1 September 1917, during a general activation of Stoßtruppen style assault troops, across the whole Ottoman Army. The XV Corps, the First Army and the Fourth Army established the 1st, 2nd, and 3rd Assault Battalions respectively. In addition, Enver Pasha ordered each infantry division in the Yildirim Army Group and in the Fourth Army, to establish assault detachments consisting of the best officers, NCOs, and men from the best units in the division. These soldiers were required to be 27 years old or younger, intelligent, healthy and strong. Each assault unit was given a one-month assault course, better rations, and a badge embroidered with a hand grenade.[35]

Aircraft

During October, 56 aircraft in Nos. 301, 302, 303 and 304 Squadrons of the German Flying Corps, arrived in Palestine from Germany. At the time No. 14 (Ottoman) Squadron's A.E.G. two-seaters, were stationed at Kutrani.[36]

Characteristics

It has also been claimed that after "Russia's collapse in 1917" that reinforcements needed in Palestine were sent to the Caucasus, leaving the Ottoman army low in morale. In describing the situation, Hughes writes that "many had received no mail from home in years. The hapless Turkish recruits awaited the EEF assault in 'fragile tents' with 'nothing to cheer their spirits'."[37] This was because "the condition of the Ottoman railway system was such that the Turks had difficulty maintaining any substantial force in Palestine either for defensive or offensive operations." Based on a single track for 1,275 miles, with sections of standard and narrow gauge, the Ottoman lines of communication have been described as "appalling."[38]

The Ottoman Army in Palestine in 1917 continued to demonstrate most of the characteristics they had during the first two years of war. The army was operationally and tactically aggressive, executing both defensive and offensive operations and training continuously in realistic, up-to-date methods at troop level and in centralised settings. According to Erickson, "[d]ivisions were task-organised" for a variety of "specific tactical missions." The commanders were experienced, highly trained and capable leaders who "continued to function well in its third year of a multi-front total war."[39]

However, it has also been claimed that the Ottoman front line infantry battalions were "operating at about half strength." The 21st Infantry Regiment on 26 October, according to the Turkish General Staff Archives was claimed to be "at half strength in trained men" and reinforcements were failing to keep up with "sick and battle casualties." Their last battle had been a decisive victory seven months previous, in April, from behind strong fortifications. Captain Hüseyin Hüsnü Emir, Assistant Chief of Staff of the Yildirim Army Group, claimed the 16th Division which had 200 officers, 400 NCOs and 10,900 men in September 1916, had been reduced to only 5,017 officers and men by 15 October 1917. Then the "three infantry battalions in its 78th Infantry Regiment numbered about 400 men each (out of an authorisation of about 750 men per battalion)." He also claimed that every division in the Gaza defences was below strength by 50 per cent, but there is no mention of the establishment of assault battalions. In addition, chronic failures due to casualties and manpower shortages, were reported as being "compounded by terrible attrition from disease and desertion." On 3 August 1917, the Yildirim Army Group reported "a deficit of some 70,000 soldiers", and that even the proposed reinforcements would leave them 40,000 short.[40] According to Hussein Husni's Yilderim, "in September 1917 Mustafa Kemal, the commander of the Seventh army in Palestine, reported to Enver Pasha that 50 per cent of the arriving 54th division were either too young or old; [no source] a battalion of one of the best divisions left Istanbul 1,000 strong, only to arrive at Aleppo with 500 men. [note 76 Hussein Husni, Yilderim, Part 1, Chapter 4 (also appendix 16).] "[41]

According to Massey, rations and leadership amongst the divisions facing the British Empire troops were also poor, writing "if the...[Ottoman Army]...had been well led and properly rationed," the Ottoman 3rd, 7th, 16th, 19th, 20th, 24th, 26th, 27th, 53rd, and 54th Divisions and the 3rd Cavalry Division, should have been able to resist more strongly.[42]

Gaza-Beersheba line

Western section of the Gaza–Beersheba Line

After April, the defences at Gaza had been strengthened. Many of the houses were built on a ridge, each with its own garden surrounded by high cactus hedges, enclosing an area at least 1 mile (1.6 km) deep. Along with this formidable area the 12,000 yards (11,000 m) of trenching west of the town needed to be attacked by infantry as Allenby did not have enough artillery to do the job.[43] Both Sheria and Beersheba were particularly strongly fortified by the Ottoman force, permanent strongly entrenched and wired positions were constructed from the sea at Gaza to Shellal on the Wadi Ghazzeh, defended by infantry.[44][45] An Ottoman appreciation stated that due to lack of water any attack on Beersheba could only be made by one cavalry and one infantry division.[46][Note 2]

The well-sited Ottoman defences relied on entrenched Ottoman soldiers ready to take every opportunity to counterattack. Both Gaza and Beersheba were virtually ringed by fortifications. An attack was expected by the EEF and the Ottoman Army knew about EEF preparations for an attack.[22]

The strength of the Yildirim Army Group units holding the Gaza to Beersheba line was estimated at 40,000 rifles, although the figure was later found to be closer to 33,000 rifles, 1,400 sabres and 260 guns, including the reserve 19th Division at 'Iraq el Menshiye, and the 12th Depot Regiment at Hebron.[17][Note 3] While both Sheria and Beersheba were particularly strongly fortified by the Ottoman defenders, there were permanent strongly entrenched and wired positions stretching from the sea at Gaza to Shellal on the Wadi Ghazzeh.[44][45]

On 31 October, the defenders of the Gaza to Beersheba line had been increased to nine divisions and one cavalry division.[47] The Yildirim Army Group's pre–battle deployment saw the Gaza–Beersheba line held by two field armies "abreast." On the right, the Eighth Army with headquarters at Huleikat north of Huj deployed,

XXII Corps commanded by Refet Bey with headquarters at Jebaliye holding the strongly fortified positions around Gaza with the 3rd, 53rd Divisions
XX Corps commanded by Ali Fuad Bey with headquarters at Huj held Sheria with the 16th, 26th, 54th Divisions, holding the line eastwards with the 26th and 54th Divisions
Army Reserve at Deir Sneid the 7th Division and the 19th Division, which was either at Iraq el Menshiye 25 miles (40 km) north of beersheba and 19 miles (31 km) north–east of Gaza, or at an assembly area 20 kilometres (12 mi) behind the front.[22][47][48]

Gaza had been developed into a strong fortress, heavily entrenched and wired. Stretching from the Mediterranean Sea on either side of Gaza a series of strong groups of positions at Sihan, Atawineh, Abu Hariera-Arab el Teeaha and Beersheba, ran eastwards for 30 miles (48 km) to a point south of Sharia.[12] Extending across the railway, these groups of defensive positions had "every advantage of observation over the long bare slopes which an attacker must cross." Beyond these main positions there was a gap of about 8 miles (13 km) to the defences at Beersheba where the desert country, minimized the threat of an EEF attack. However strong defences had been developed to the west and south–west of Beersheba with a garrison from the Seventh Army of 5,000 protecting its important wells,[18] supported by a number of high entrenched hills around Beersheba.[49]

Beersheba end of the Gaza–Beersheba Line

The Seventh Army on the left, commanded by Fevzi Pasha was deployed –

III Corps at Kauwukah or in XX Corps reserve near Kh. Jemmame east of Huj (24th Division) at Beersheba (27th, 16th Divisions, 3rd Cavalry Division) also at Beersheba.[22][47][48]

Beersheba was defended by the Ottoman 27th Division, reinforced by battalions from the 16th and 24th Divisions.[50] Here, the fortifications consisted of two lines of defensive positions. The outer line circled the town from the Gaza to Beersheba road where the line passed through the high ground to the north–west of Beersheba before continuing to the west and south–west of Beersheba, to Ras Ghannam. Situated on average about 7,000 yards (6,400 m) from Beersheba, this semi–circle of defences was heavily entrenched and wired. To the north–east, east and south–east the outer line of defences consisted of a series redoubts or strong posts on the high ground at Tel el Sakaty and Tel el Saba, along with two stone block–houses defending the north bank of the Wadi Saba. The second inner line of defences completely encircled Beersheba the town itself, crossing the Wadi Saba just to the south of the railway bridge.[51] Before the battle, Kress von Kressenstein recommended that the wells at Beersheba be destroyed and the garrison withdrawn to the hills north of the town, because he considered there were not enough troops to successfully defend Beersheba. He argued that from the hills to the north, the Beersheba garrison could attack the flank of any EEF units moving against Hareira and Sheria, but von Falkenhayn rejected this advice.[52]

Attacking force

The EEF had been reorganized and strengthened during the Stalemate in Southern Palestine to overcome the strongly reinforced and entrenched Ottoman forces holding the Gaza to Beersheba line.[53] Allenby was directed by the War Cabinet to "strike the Turks as hard as possible," and defeat hostile forces wherever they opposed the EEF. He was to commence the offensive as "early as possible in September" before the Ottoman Army could redeploy their forces after the withdrawal of Russia from the war. Robertson assured Allenby was assured that "everything possible" was being done to bring the EEF back to full strength and fully supplied with munitions. However there was "no prospect at present of being able to send you the further reinforcements ... required for operations beyond the line Jaffa–Jerusalem."[54] By this time the EEF was competing for finite British resources, which were being restricted by the very successful German submarine attacks which destroyed British ships and supplies, with the Third Battle of Ypres which had commenced on 31 July. However, more artillery was in transit, and the doubling of the railway had been authorised on 21 July.[55]

The fighting strength of the EEF was 100,189:

Desert Mounted Corps 745 officers, 17,935 other ranks in the Anzac, Australian and Yeomanry Mounted Divisions
XX Corps 1,435 officers, 44,171 other ranks in the 10th, 53rd, 60th and 74th Divisions
XXI Corps 1,154 officers, 34,759 other ranks in the 52nd, 54th and 75th Divisions.[7][46][56] The force consisted of:

XX Corps (Lieutenant General Sir R.W. Chetwode, Bart.)

10th (Irish) Division (Major General J.R. Longley)[Note 4]
29th Brigade
30th Brigade
31st Brigade
53rd (Welsh) Division (Major General S.F. Mott)
158th (North Wales) Brigade
159th (Cheshire) Brigade
160th (Welsh Border) Brigade
60th (2/2nd London) Division (Major General J.S.M. Shea)
179th (2/4th London) Brigade
180th (2/5th London) Brigade
181st (2/6th London) Brigade
74th (Yeomanry) Division (Major General E.S. Girdwood)
229th Brigade
230th Brigade
231st Brigade
Corps Cavalry Regiment – 1/2nd County of London Yeomanry
Corps Artillery – 96th Heavy Artillery Group

XXI Corps (Lieutenant General Sir E.S. Bulfin)

52nd (Lowland) Division (Major General J. Hill)
155th (South Scottish) Brigade
156th (Scottish Rifles) Brigade
157th (Highland Light Infantry) Brigade
54th (East Anglian) Division (Major General S.W. Hare)
161st (Essex) Brigade
162nd (East Midland) Brigade
163rd (Norfolk and Suffolk) Brigade
75th Division(Major General P.C. Palin)
232nd Brigade
233rd Brigade
234th Brigade
Corps Cavalry Regiment – Composite Yeomanry Regt.
Corps Artillery – 97th, 100th, 102nd Heavy Artillery Groups
20th Indian Brigade (Brigadier General H.D. Watson)

Desert Mounted Corps (Lieutenant General Sir H. Chauvel)

Anzac Mounted Division (Major General E.W.C. Chaytor)
1st Light Horse Brigade (Brigadier General C. F. Cox)
2nd Light Horse Brigade (Brigadier General G. de L. Ryrie)
New Zealand Mounted Rifle Brigade (Brigadier General W. Meldrum)
XVIII Brigade RHA (Inverness-shire, Ayrshire and Somerset Batteries) of 13–pounder guns and Divisional Ammunition Column
Australian Mounted Division (Major General Henry W. Hodgson)
3rd Light Horse Brigade (Brigadier General L. C. Wilson)
4th Light Horse Brigade (Brigadier General W. Grant)
5th Mounted Brigade (Brigadier Generals Percy Desmond FitzGerald/P. J. V. Kelly)
XIX Brigade RHA (1/A and 1/B Batteries HAC and 1/1st Nottinghamshire RHA) of 13–pounder guns and Divisional Ammunition Column
Yeomanry Mounted Division (Major General G. de S. Barrow)
6th Mounted Brigade (Brigadier General C. A. C. Godwin)
8th Mounted Brigade (Brigadier General C. S. Rome)
22nd Mounted Brigade (Brigadier General P. D. FitzGerald)
XX Brigade RHA (Berkshire, Hampshire and Leicestershire Batteries) of 13–pounder guns and Divisional Ammunition Column
Corps Reserve
7th Mounted Brigade (Brigadier General J. T. Wigan)
Essex Battery RHA and Brigade Ammunition Column
Imperial Camel Corps Brigade (Brigadier General C. L. Smith)
Hong Kong and Singapore Camel Battery RGA.[57][58][59] The artillery of Desert Mounted Corps was downgraded in mid September from 18-pounder to 13-pounder guns, which Erickson characterised as becoming "even more capable."[59][60]
General Headquarters Troops
Army Cavalry
Imperial Service Cavalry Brigade (Major (temp. Brigadier General M. H. Henderson)
Kathiwar Signal Troop
124th Indian Cavalry Field Ambulance.[61] The XXI Corps' Composite Force of almost a division, consisting of the 25th Indian Infantry Brigade, a West Indian battalion, the French Détachement français de Palestine and the Italian Distaccamento italiano di Palestina, was camped east of the 75th Division in the region of Sheikh Abbas.[62]
Italian Bersaglieri with a machine-gun instructor in Palestine

Altogether, the EEF comprised 200,000 men (including Arab workers), 46,000 horses, 20,000 camels, more than 15,000 mules and donkeys, and hundreds of artillery pieces.[63] The official rifle strength of the EEF on 28 October 1917, was 80,000 in the infantry divisions and the Imperial Camel Brigade, and 15,000 cavalry including the mounted rifles and mounted infantry brigades.[Note 5] However the "actual strength ... [was] about 60,000 and 12,000 respectively."[64] This represented a comparable ratio of 2:1 infantry, 8:1 cavalry and about 3:2 guns.[17][Note 6]

Most of Allenby's infantry were Territorial divisions, mobilised at the outbreak of the war with most, if not all the battalions having some regular army officers and NCOs. A number of the divisions had fought against the Ottoman Army, during the Gallipoli Campaign. The 52nd (Lowland) Division at Cape Helles, while the 53rd (Welsh) Division and the 54th (East Anglian) Division fought at Suvla Bay, while the 60th (2nd/2nd London) Division had fought on the western front and at Salonika. The 74th (Yeomanry) Division recently formed from was 18 under–strength Yeomanry regiments had all fought dismounted at Gallipoli. The 10th (Irish) Division, a New Army (K1) division had also fought at Suvla Bay and at Salonika.[65] All three of the brigades of the Anzac Mounted Division and the two light horse brigades of the Australian Mounted Division had fought the Ottoman Army on Gallipoli.[59][Note 7]

Allenby agreed that he would take the offensive as soon as arrangements were complete and he had seven infantry divisions ready for action.[66] During October Allenby was waiting "for reinforcements from England."[67] On 17 October Allenby wrote to Robertson that the 75th Division was complete but the 10th (Irish) Division had about 3,000 cases of fever and lacked its "B" echelon of its Divisional Ammunition Column. He was hopeful that the Irish division would be complete and able to field between 8,000 and 9,000 rifles "on the day." In addition Allenby had been in close touch with the naval captains, while waiting for reinforcements, to ensure they had personally reconnoitred their sea and land so they "know exactly what to do."[68]

Aircraft

The Army Wing aircraft were assigned to carry out strategic reconnaissances, to report on Ottoman reserves well behind their lines, and carry out photography duties and air raids. Army fighter squadron was to provide protection from hostile air attack, while the Army bombing squadron was prepared to conduct bombing air raids. The Corps Squadrons of aircraft attached to the two infantry corps, carried out artillery and contact patrols, along with tactical reconnaissance. Photography of the opposition's trenches was normally carried out daily by the Army Wing. One flight of aircraft attached to XX Corps, was responsible for carrying out artillery and contact patrols and tactical reconnaissances for Desert Mounted Corps.[69]

As well as the arrival of British troops, all types of war material along with heavy guns, motor transport, up-to-date fast aircraft replaced the slow aircraft, which had been outpaced by the German Fokker and Albatross Scout aircraft. The first of the new R.E.8s arrived at No. 1 Squadron on 17 October along with new Martinsydes, fitted with a 160-hp engine instead of the old 120-hp engines. As a result, control of the air gradually moved to the EEF from the Ottoman Army, which had held it since the Sinai campaign.[70][71][72]

New Bristol Fighter aircraft arrived in ones and twos to establish No. 111 Squadron RFC which was shortly followed by No. 113 Squadron RFC, which took over corps operations, and to relieve No. 1 Squadron of some trench reconnaissances, as it in turn became a specialist bombing squadron. New pilots and observers from the training school, reported to the squadrons and in August, No. 1 Squadron was authorised by A.I.F. Headquarters, to hold a reserve of fifty per cent of flying officers above establishment. The full value of this provision not become fully utilised until the air war of 1918.[73]

Sherifial Forces

Allenby was hopeful that Lawrence and the Sherifial Arab force could support a September attack, recognising that they were involved with harvests before September, but "must get going before the end of September" prior to their normal move to camel grazing lands in the Syrian desert. "They, naturally, won't and can't do much unless I move; and it is not much use their destroying the Turks' communications unless I take immediate advantage of such destruction ... If I bring them into the fight and do not make progress myself, this will also expose them to retaliation – which to some tribes, such as the Druzes, S. of Damascus, may mean annihilation."[74]