Z companies, took up position in the British trenches at 3:30 am. At 8:40 am, the battalion received orders to advance and clear the German first-line trenches. It was delayed by heavy enemy fire and congestion in the communication trenches. The Newfoundland Regiment advancing to the left of the Essex battalion was almost entirely wiped out as it advanced towards the German lines. At 10:50 am, the Essex companies were in position and received orders to go "over the top". The companies came under heavy artillery and machine gun fire almost as soon as they appeared over the parapet, causing heavy losses. The attack became bogged down in no man's land. The battalion received orders from 88th Brigade headquarters to recommence the attack at 12:30 pm, but at 12:20 pm the battalion commander advised brigade HQ that "owing to casualties and disorganisation", it was impossible to renew the attack. The survivors of the battalion received orders to hold their position along the line of 'Mary Redan' – 'New Trench' – 'Regent Street'. Thiepval Memorial The names of 959 members of the Essex Regiment are recorded on the Thiepval Memorial, commemorating the officers and men of the regiment who died on the Somme and have no known grave. Gallipoli After serving in home defence, the Essex Brigade (containing the 1/4th, 1/5th, 1/6th and 1/7th battalions and now numbered the 161st (Essex) Brigade in 54th (East Anglian) Division) landed at Suvla Bay in August 1915 in an attempt to restart the stalled Gallipoli Campaign. The four Essex battalions saw some hard fighting, but lost even more men to sickness. They were withdrawn to Egypt in December before the Gallipoli Peninsula was finally abandoned. Senussi Campaign As soon as it arrived in Egypt, the brigade became involved in the Senussi Campaign, marching out to replace the New Zealand Rifle Brigade guarding the coast railway from Alexandria to Da'aba. The Essex battalions were relieved from this duty on 4 March 1916 by the 2nd County of London Yeomanry and moved into the No 1 (Southern) Section of the Suez Canal Defences. In August, part of the brigade was moved northwards to counter a Turkish thrust at the canal, and was present at the Battle of Romani, though only 161st Brigade Machine Gun Company was engaged. Sinai and Palestine In early 1917, 161st Brigade crossed the Sinai Desert to take part in the Palestine Campaign.