The Capture of Jenin occurred on 20 September 1918, during the Battle of Sharon which together with the Battle of Nablus formed the set piece Battle of Megiddo fought between 19 and 25 September during the last months of the Sinai and Palestine Campaign of World War I. During the cavalry phase of the Battle of Sharon carried out by the Desert Mounted Corps, the 3rd Light Horse Brigade, Australian Mounted Division attacked and captured the town of Jenin located on the southern edge of the Esdraelon Plain (also known as the Jezreel Valley and the plain of Armageddon) behind the front line in the Judean Hills. The Australian light horse captured about 2,000 prisoners, the main supply base and the ordnance depot of the Seventh and the Eighth Armies in and near the town. They also cut the main road from Nablus and a further 6,000 Ottoman Empire and German Empire prisoners, were subsequently captured as they attempted to retreat away from the Judean Hills.
The Egyptian Expeditionary Force (EEF) cavalry had ridden through a gap on the Mediterranean Sea coast, created by the infantry during the Battle of Tulkarm, to capture the two Ottoman armies' main lines of communication and supply north of the Judean Hills, while the infantry battles continued. On 20 September, the Desert Mounted Corps captured Afulah, Beisan and Jenin on the Esdrealon Plain. The next day the headquarters of the Seventh Army at Nablus, and the General Headquarters (GHQ) of the Yilderim Army Group at Nazareth, were both captured, while Haifa was captured two days later. During a subsequent early morning attack on 25 September, a German rearguard was captured during the Battle of Samakh, which ended the Battle of Sharon. During these operations the greater part of one Ottoman army was captured in the Judean Hills and at Jenin. These and other battles fought during the Battle of Megiddo including the Battle of Nablus and Third Transjordan attack, forced the retreating Ottoman Fourth, and remnants of the Seventh and the Eighth Armies, to the eastern side of the Jordan River. As they withdrew northwards towards Damascus they were pursued by the Desert Mounted Corps.
After the infantry established a gap in the Ottoman front line on the coast early on the morning of 19 September, the Australian Mounted Division's 3rd and 4th Light Horse Brigades (less the 5th Light Horse Brigade temporarily detached to the 60th Division) in reserve, followed the 4th Cavalry Division north on the Plain of Sharon and across the Mount Carmel Range, by the Musmus Pass, to Lejjun on the Esdrealon Plain. While the 4th Light Horse Brigade remained to garrison Lejjun and provide various guards for artillery, supplies, and corps headquarters before being ordered to capture Samakh, the 3rd Light Horse Brigade advanced to Jenin, where the 9th and 10th Light Horse captured the town after a brief fire fight. Subsequently, these two regiments captured some 8,000 Ottoman soldiers, who had been attempting to retreat northwards out of the Judean Hills, during the night of 20/21 September. The outnumbered Australian Light Horsemen were reinforced as quickly as possible, and the majority of the prisoners were marched back into holding camps, near Lejjun in the morning. The 3rd Light Horse Brigade remained in the area to garrison Jenin until they advanced to capture Tiberias on 25 September 1918, before participating in the pursuit to Damascus.
Background Following the Capture of Jericho in February, the commander of the Egyptian Expeditionary Force (EEF), General Edmund Allenby ordered the occupation of the Jordan Valley. In March–April and April–May 1918, the First and the Second Transjordan attacks took place, while the front line across the Judean Hills to the Mediterranean Sea was defended. During this time, three-quarters of the British infantry and yeomanry cavalry regiments were redeployed to the Western Front to counter Ludendorff's German spring offensive. They were replaced by British India Army infantry and cavalry which required a reorganisation. These newly arrived soldiers carried out a series of attacks on sections of the Ottoman front line in the Judean Hills during the summer months, as part of their training. These attacks including the Battle of Tell 'Asur and Action of Berukin in March and April, were aimed at pushing the front line to more advantageous positions in preparation for a major attack, and to acclimatise the newly arrived infantry. This fighting continued during the summer months. By the middle of September the consolidated EEF was once again ready for large-scale offensive operations.Falls 1930 Vol. 1 p. 97, Vol. 2 pp. 302–446
On 19 September, the Battle of Megiddo commenced with the XXI Corps (commanded by Lieutenant General Edward Bulfin), under cover of a creeping barrage, broke through the Ottoman front line to begin the Battle of Sharon. In the afternoon the XX Corps commanded by Lieutenant General Philip Chetwode began the Battle of Nablus, also supported by an artillery barrage. This offensive by the XX and XXI Corps, continued until midday on 21 September, when a successful flanking attack by the XXI Corps, combined with the XX Corps assault, forced the Seventh and the Eighth Armies, to disengage. The Seventh Army retreated from the Nablus area towards the Jordan River, crossing at the Jisr ed Damieh bridge before a rearguard at Nablus was captured. While the EEF infantry were fighting the Seventh and Eighth Armies in the Judean Hills, the Desert Mounted Corps commanded by the Australian Lieutenant General Harry Chauvel advanced through the gap created by the XXI Corps infantry on the morning of 19 September, to ride northwards and virtually encircle the Ottoman forces before they disengaged. The cavalry divisions captured Nazareth, Haifa, Afulah, Beisan, and Jenin before and Samakh and the Capture of Tiberias ended the Battle of Megiddo. During this time, Chaytor's Force (temporarily detached from Desert Mounted Corps) commanded by Major General Edward Chaytor, captured part of the retreating Ottoman and German column at the Capture of Jisr ed Damieh bridge over the Jordan River to cut off this line of retreat, during the Third Transjordan attack. To the east of the river, as the Ottoman Fourth Army began its retreat, Chaytor's Force advanced to capture Es Salt on 23 September and Amman on 25 September. Units of Chaytor's Force captured Amman after defeating a strong Fourth Army rearguard during the Second Battle of Amman.Falls 1930 Vol. 2 pp. 447–555
Prelude
In preparation for the Battle of Megiddo, the Desert Mounted Corps, consisting of the 4th and 5th Cavalry Divisions, the Australian Mounted Division's 3rd and 4th Light Horse Brigades, concentrated near Ramleh, Ludd (Lydda), and Jaffa. Here dumps were formed of all surplus equipment, before the brigades and divisions moved up close behind the XXI Corps infantry divisions, near the Mediterranean coast.Maunsell 1926 p.213Carver 2003 p. 232Falls 1930 Vol. 2 p. 484
Each mounted division of about 3,500 troopers, consisted of three brigades, each brigade being made up of three regiments. Five of the six brigades of the 4th and 5th Cavalry Divisions, most of which had recently arrived from France, consisted of one British yeomanry regiment and two British Indian Army cavalry regiments, one of which was usually lancers, including the Indian Princely States' 15th Imperial Service Cavalry Brigade of three lancer regiments. Some of the cavalry regiments were armed in addition to their Lee–Enfield rifles, bayonets and swords, with lances. The Australian Mounted Division consisting of three light horse brigades, each with three regiments, containing a headquarters and three squadrons. With 522 men and horses in each regiment, they were armed in addition to their rifles and bayonets with swords.DiMarco 2008 p. 328Gullett 1941 pp. 653–4Hill 1978 p. 162 The mounted divisions were supported by machine gun squadrons, three artillery batteries from the Royal Horse Artillery or the Honourable Artillery Company, and light armoured car units—two Light Armoured Motor Batteries, and two Light Car Patrols.
By 17 September the 5th Cavalry Division, which would lead the advance, was deployed north-west of Sarona, from the front line, with the 4th Cavalry Division in orange groves to the east, from the front, and the Australian Mounted Division in reserve near Ramleh and Ludd, from the front line.Falls 1930 Vol. 2 p. 463Paget 1994 pp. 257 All movement, restricted to the night hours, culminated in a general move forward on the eve of battle during the night of 18/19 September, when the Australian Mounted Division moved up to Sarona. The supplies for the three divisions concentrated in the rear in divisional trains, in massed horse-drawn transport and on endless strings of camels, clogging every road in the area.Gullett 1919 p. 28Wavell 1968 p. 208 One iron ration and two days' special emergency ration for each man, and 21 pounds (9.5 kg) of grain for each horse, was carried on the trooper's horse, with an additional day's grain for each horse, carried on the first-line transport limbered wagons.Maunsell 1926 p. 238
Advance to Lejjun
During the initial cavalry advance up the coastal Plain of Sharon to Litera on the Nahr el Mefjir, the Desert Mounted Corps was to advance, "strictly disregarding any enemy forces" which were not on the path of their advance.Wavell 1968 p. 199 The mounted units were to cross the Mount Carmel Range from the coast to the Esdraelon Plain, through two passes. The 5th Cavalry Division took a northern and more difficult track from Sindiane to Abu Shusheh, south-east of Haifa, heading towards Nazareth, while the 4th Cavalry Division followed by the Australian Mounted Division in reserve crossed the mountain range by the historic southern Musmus Pass, (used by armies of the Egyptian Pharaoh Thothmes III in the 15th century BC, and the Roman Emperor Vespasian in the 1st century AD) to Lejjun before advancing to Afulah in the centre of the Esdrealon Plain.Preston 1921 pp. 200–1Falls 1930 Vol. 2 p. 516 This southern pass was about 14 miles (23 km) long and about wide, as it followed the Wadi Ara up the side of the Samarian Hills to above sea level, before falling to the plain.Paget 1994 Vol.4 pp. 274–77 During their advance, the Australian Mounted Division halted for ten minutes every hour, when saddle girths may have been loosened and a few minutes sleep snatched, with the reins looped around an arm jammed deeply into a pocket.Hamilton 2002 p. 157
The Esdrealon Plain, also known as the Jezreel Valley, and the Plain of Armageddon, stretches to the white houses of Nazareth in the foothills of the Galilean Hills on its northern edge away, to Jenin on its southern edge at the foot of the Judean Hills, through Afulah to Beisan on its eastern edge, close to the Jordan River. On its western edge near Lejjun, at the mouth of the Musmus Pass, the ancient fortress of Megiddo on Tell al Mutesellim, dominates the Esdrealon Plain, across which Romans, Mongols, Arabs, Crusaders and the army of Napoleon had marched and fought.Hill 1978 pp. 162–3 The road and railway network, on which the German and Ottoman forces in Palestine depended for supplies and communications, crossed this plain via the two important communication hubs of Afulah and Beisan. (See Falls Map 21 Cavalry advances detail)Wavell 1968 p. 205Keogh 1955 pp. 242–4 The railway passed from the plain into the Judean Hills south of Jenin, to wind through a narrow pass in the foothills before climbing to Messudieh Junction, where it again branched. One line ran westward to Tulkarm and Eighth Army headquarters, before turning south to the railhead to supply the Eight Army front line troops on the coastal plain, while the main railway line continued south-eastward to Nablus, and the Seventh Army headquarters.Keogh 1955 pp. 242–3