At the conclusion of the Battle of Romani on 12 August 1916, the Ottoman Army had been pushed back to its forward position at Bir el Abd, the last oasis in the series stretching from the Romani area. The Ottomans' main forward base was pushed back to El Arish, with a fortified advanced post at Bir el Mazar, where a small group of wells which reliably provided water. El Arish was the target of an air raid on 18 June 1916 by 11 aircraft of the 5th Wing under Colonel W. G. H. Salmond. The planes flew out to sea until east of El Arish, then turned inland to approach from the southeast. Two Ottoman aircraft on the ground and two of the ten aircraft hangars were set on fire; bombs hit four others and troops were also attacked. Three British aircraft were forced to land, one in the sea. From the middle of August to the Battle for Magdhaba on 23 December 1916, British forces waited for this necessary infrastructure to be put in place. These four months have often been described as a period of rest for the Anzac Mounted Division as there were no major battles. However, the mounted troops were busy providing screens for the construction, patrolling newly occupied areas and carrying out reconnaissances to augment aerial photographs to improve maps of the newly occupied areas. During one of the patrols, on 19 August, a group of 68 Ottoman soldiers was found half dead from thirst by the
5th Light Horse Regiment (2nd Light Horse Brigade) who, rather than attacking them, gave them water and their rides. The commanding officer and his men led the Ottoman Army soldiers on their horses for through deep sand until met by transport. "This was a very queer sight and worthy of a moving picture [of these] poor sacrifices of the Huns." British infantry was brought forward to fortify and provide garrisons along the length of the railway. They formed a firm base for mobile operations and defence in depth for the huge administrative organisation advancing with the railway, in support of the Anzac Mounted Division and the 52nd (Lowland) Division. Although the front had moved eastwards across the Sinai, it was still necessary to maintain defence units on the Canal. While serving as part of Canal Defence at Gebel Heliata, Serapeum, the
12th Light Horse Regiment commemorated 28 August: "Today being the Anniversary of the Regiment landing on Gallipoli, a little latitude was given to all hands, and an enjoyable evening was spent in the men's canteen." By September 1916, the German and Ottoman Empires had renegotiated their agreements to recognise the increasing Ottoman forces being deployed in Europe, while German and Austrian aid and equipment was increased to strengthen the Ottoman army in Palestine. German aircrews of the
Luftstreitkräfte bombed Port Said on 1 September 1916 and Australian and British airmen answered with a bombing raid on
Bir el Mazar three days later, when twelve bombs silenced the anti-aircraft guns and blew several tents to pieces. Bir el Mazar was again bombed on 7 September. As part of the advance across the Sinai, the Australian Flying Squadron's "B" Flight moved their hangars from Suez forward to Mahemdia (4 miles from Romani) on 18 September; "C" Flight moved to Kantara on 27 September 1916.
Medical support Advances in military medical techniques included the surgical cleaning (or debridement) of wounds, with delayed primary surgical closure, the Thomas Splint which stabilized compound leg fractures, the use of intravenous saline which had begun in 1916 and blood transfusions to prevent or even reverse the effects of shock. Casualties were transported from the regimental aid post close to the firing line to an advanced dressing station in the rear by the stretcher bearers of the field ambulances attached to the light horse and mounted brigades. Evacuations back to the railway line which stretched across the Sinai, were undertaken in horse-drawn ambulances, in sand sledges or in
cacolets on camels, which was described as "a form of travel exquisite in its agony for wounded men because of the nature of the animal's movement".
Condition of the horses There was a progressive improvement in horsemanship during the summer and autumn of 1916 indicated by the small number of animals evacuated from the Anzac Mounted Division after the strenuous marching and fighting from August after the Battle of Romani, during the capture of El Arish and the Battle of Magdaba. This improvement was augmented by regular inspections by administrative veterinary officers when the advice offered was followed by regimental commanders. During the year the average loss of sick horses and mules from the Sinai front was approximately 640 per week. They were transported in train loads of thirty trucks, each holding eight horses. Animals which died or were destroyed while on active service were buried from the nearest camp unless this was not practicable. In this case the carcasses were transported to suitable sites away from troops, where they were disembowelled and left to disintegrate in the dry desert air and high temperatures. Animals which died or were destroyed in veterinary units at Kantara, Ismalia, Bilbeis and Quesna were dealt with in this way and after four days' drying in the sun, the carcases were stuffed with straw and burnt, after the skins were salvaged and sold to local contractors.
Creation of Eastern Frontier Force In September 1916, General Murray moved his headquarters from Ismailia on the Suez Canal back to Cairo in order to deal more efficiently with the threat from the
Senussi in the Western Desert. General Lawrence was transferred to France where he served as Chief of Staff to Field Marshal Haig in 1918. Field Marshal
William Robertson, the
chief of the Imperial General Staff, set out his global military policy at this time in a letter to Murray of 16 October 1916, in which he stated "I am not intent on winning in any particular quarter of the globe. My sole object is to win the war and we shall not do that in the Hedjaz nor in the Sudan. Our military policy is perfectly clear and simple ... [It] is offensive on the Western Front and therefore defensive everywhere else". In this climate of defensive military policy, Major-General Sir
Charles Dobell, who had acquired a reputation for sound work in minor operations, was promoted to the rank of lieutenant-general, given the title of GOC Eastern Frontier Force and put in charge of all the troops on the canal and in the desert. His headquarters was established at Ismailia and he began to organise his command into two parts, the Canal Defences and
Desert Column. In October, Eastern Force began operations into the Sinai desert and on to the border of Palestine. Initial efforts were limited to building a railway and a waterline across the Sinai. The railway was constructed by the
Egyptian Labour Corps at the rate of about a month and the British front moved eastward at the same speed.
Raid on Bir el Mazar A reconnaissance in force to Bir el Mazar was carried out by the 2nd and 3rd Light Horse Brigades, the 1st Battalion, of the
Imperial Camel Corps Brigade (ICCB), the New Zealand Machine Gun Squadron and the ICCB's Hong Kong and Singapore Battery, on 16–17 September 1916. At the limit of their
line of communication the light horse, infantry, machine guns and artillery were not able to capture the 2,000 strong, well entrenched garrison which made a determined stand. After demonstrating the strength of the advancing army, they successfully withdrew back to Anzac Mounted Division's Headquarters at Bir Sulmana to the west. The Ottoman force abandoned Bir el Mazar shortly after. The report of the 2nd Light Horse Brigade described their 5th Light Horse Regiment being fired on by anti-aircraft guns during the operations and reported one man killed and nine wounded. The 3rd Light Horse Brigade recorded that the troops of the Imperial Camel Corps Brigade and the artillery battery were unable to move quickly enough to take part in the attack, and their brigade lost three killed, three wounded and two injured. Airmen of No. 1 and No. 14 Squadrons confirmed anti-aircraft guns fired on the light horse, describing the ground engagement as so tough the Ottoman Army soldiers resorted to this extreme measure, turning their anti-aircraft guns away from the attacking planes. The Ottoman soldiers withdrew to the
Wadi al-Arish, with garrisons at Lahfan and Magdhaba.
Raid on Maghara Hills As the Allies advanced, an Ottoman-occupied position on the right flank at Bir El Maghara south east of Romani, began to be a threat to their advance. Major-General A.G. Dallas was put in command of a column of 800 Australian Light Horse, 400
City of London Yeomanry, 600 Mounted Camelry and 4,500 camels from the Egyptian Camel Transport Corps, with another 200 camels for the
Army Medical Corps. The column formed at Bayoud and moved off on 13 October on a two-night march via Zagadan and Rakwa to the Maghara Hills. On arrival, A and C Squadrons of the 12th Light Horse Regiment deployed in the centre, with the 11th Light Horse Regiment on the right and the Yeomanry on the left flanks, dismounted at the foot of the hills. Handing over their lead horses in excellent cover these dismounted men then scaled the heights and surprised the defenders but failed to capture the main defensive position. The 11th Light Horse Regiment captured seven Ottoman prisoners and three Bedouins, retiring the way they came to base on 17 October and back to railhead Ferdan on the Suez Canal, on 21 October 1916.
Aerial bombing of Beersheba Subjected to further bombing air raids, by 2 October aerial reconnaissance photographs revealed the German aircraft hangars formerly at El Arish had disappeared. By 25 October there was no anti-aircraft fire reported over El Arish and reductions in the Ottoman–German force based there were apparent. By this time the railway construction was well past Salmana where a British forward aerodrome was under construction and No. 1 Squadron were involved in photographing the area around El Arish and Magdhaba, and No. 14 Squadron were reconnoitering
Rafah. On 11 November a Martinsyde and nine B.E.2c's, loaded with bombs and petrol, left the Kantara and Mahemdia aerodromes at dawn and assembled at Mustabig, just west of Bir el Mazar. There a raiding force of five B.E.2c's and the Martinsyde formed the largest force yet organised by Australians or any other air squadron in the East, filled up with petrol and bombs and set off in formation towards Beersheba. Over Beersheba the anti-aircraft guns engaged them with high explosive and shrapnel; the raiders flew through a flurry of white, black and green bursts. The Martinsyde dropped a bomb fair in the centre of the aerodrome; two bombs hit tents; others made direct hits on the
railway to Beersheba and the station. A Fokker and an Aviatik took to the air but were driven off. After photographing Beersheba and the damage caused by the bombs, the airmen returned, reconnoitring
Khan Yunis and
Rafah on the way. All machines arrived safely, after having spent seven hours in flight. Two days later a German aeroplane retaliated by bombing Cairo.
Railway building: Sinai On 17 November EEF railhead reached east of Salmana from Kantara, the water pipeline with its complex associated pumping stations built by Army Engineers and the
Egyptian Labour Corps had reached Romani.
Battle of Magdhaba, December 1916 On 21 December, after a night march of , part of the Imperial Camel Corps Brigade and the Anzac Mounted Division commanded by Chauvel entered El Arish, which had been abandoned by the Ottoman forces, who retreated to Magdhaba. during the Battle of Magdhaba|alt=A soldier is looking through the sights of a machine gun amongst the grass in the prone position. The Turkish outpost of Magdhaba was some to the southeast into the Sinai desert, from El Arish on the Mediterranean coast. It was the last obstacle to the Allied advance into Palestine. The Desert Column under Chetwode also arrived that day. Chauvel, with the agreement of Chetwode, set out to attack the Turkish forces at Magdhaba with the Anzac Mounted Division. Leaving at about midnight on 22 December, the Anzac Mounted Division was in a position by 0350 on 23 December, to see Ottoman campfires still some miles away at Magdhaba. With the 1st Light Horse Brigade in reserve, Chauvel sent the New Zealand Mounted Rifles Brigade and the 3rd Light Horse Brigade to move on Magdhaba by the north and north–east to cut off of retreat, while the Imperial Camel Corps Brigade followed the telegraph line straight on Magdhaba. The 1st Light Horse Brigade reinforced the Imperial Camel Corps Brigade in an attack on the redoubts, but fierce shrapnel fire forced them to advance up the wadi bed. By midday all three brigades and a section of the Camel Brigade, with Vickers and Lewis Gun sections and
HAC artillery were engaged in fierce fighting. Aerial reconnaissance to scout out the Ottoman positions greatly assisted the attack, although the six redoubts were well camouflaged. After tough fighting in the morning of 23 December, at about 13:00, Chauvel heard that the Turks still controlled most of the water in the area. It is claimed at this time that he decided to call off the attack. Both the 1st Light Horse Brigade and the New Zealand Mounted Rifles Brigade made progress, capturing about 100 prisoners, and by 15:30 the Turks were beginning to surrender. By 16:30 the whole garrison had surrendered, having suffered heavy casualties, and the town was captured. The victory had cost the EEF 22 dead and 121 wounded.
Battle of Rafa, January 1917 On the evening of 8 January 1917, mounted units of Desert Column including the Anzac Mounted Division, the Imperial Camel Corps Brigade, the 5th Mounted Yeomanry Brigade, No. 7 Light Car Patrol and artillery, rode out of El Arish to attack the next day 9 January, a 2,000 to 3,000-strong Ottoman Army garrison at El Magruntein also known as Rafa or Rafah. Also on 9 January four British aircraft bombed the German aerodrome at
Beersheba during the afternoon and in the evening, on the way back, saw a considerable Ottoman force near
Weli Sheikh Nuran. The British had reclaimed the northern section of the Egyptian Sinai Peninsula virtually to the frontier with the Ottoman Empire, but the new British government of
David Lloyd George wanted more. The
British Army in Egypt was ordered to go on the offensive against the Ottoman Army in part to support the
Arab revolt which had started early in 1916, and to build on the momentum created by the victories won at
Romani in August and
Magdhaba in December 1916. This next strategic objective was on the border of the British Protectorate of Egypt and the Ottoman Empire some distant, too far for infantry and so the newly formed Desert Column commanded by Chetwode was to attack the Ottoman position along the coast. The Allied troops captured the town and the fortified position by nightfall with the loss of 71 killed and 415 wounded. The Ottoman garrison suffered heavily, with 200 killed and another 1,600 taken prisoner.
End of Sinai campaign The first signs of a major reorganisation of the Ottoman Army's defences were observed after the capture of El Arish and
Battle of Magdhaba, on 28 December 1916 when reconnaissance planes found Ottoman forces moving their headquarters back. Days before the victory at
Rafa, on 7 January air reconnaissance reported Ottoman forces still at El Auja and El Kossaima with the garrison at
Hafir El Auja being slightly increased. But between 14 and 19 January Beersheba was bombed several times by No. 1 Squadron Australian Flying Corps in day and night raids; during one of these raids dropping twelve 20–lb. bombs directly on the biggest German hangar. After these raids the German airmen evacuated Beersheba and moved their aerodrome to Ramleh. And on 19 January air reconnaissance reported the Ottoman Army had evacuated El Kossaima and were in decreased strength at the major desert base at El Auja. Also on 19 January, the first air reconnaissance of the Ottoman army rear over the towns of Beit Jibrin, Bethlehem, Jerusalem, and Jericho was carried out by Roberts and Ross Smith, escorted by Murray Jones and Ellis in Martinsydes. Junction Station was also reconnoitred on 27 January. By the end of January both sides were carrying out heavy air attacks; the German and Ottoman pilots dropping bombs on the stores depot at the main base at El Arish, and Nos. 1 and 14 Squadrons regularly retaliating on Beersheba, Weli Sheikh Nuran, and Ramleh. The Germans were also bombing the Egyptian Labour Corps and delaying the building of the railway now near El Burj halfway between El Arish and Rafa with the wire road nearly at Sheikh Zowaiid. As a consequence on 3 February, Major General Chauvel was forced to order the cessation of Allied bombing in the hope that retaliations would also cease, so that the work on the rail line and pipeline could continue. The pipeline reached El Arish on 5 February. In February 1917, the Ottoman Army was observed also building a light railway line from Tel el Sheria to
Shellal, near Weli Sheikh Nuran, Sheria becoming the main Ottoman base midway along the Gaza–Beersheba defensive line. The two final actions of the Sinai campaign took place in February 1917 when General Murray ordered attacks on the Ottoman garrisons at
Nekhl and Bir el Hassana. The 11th Light Horse Regiment conducted the
raid on Nekhl on 17 February. Meanwhile, the 2nd Battalion (British) of the
Imperial Camel Corps, together with the Hong Kong and Singapore (Mountain) Battery, conducted the
raid on Bir el Hassana, which surrendered with minimal resistance on 18 February. ==Palestine campaign begins==