Trench warfare
Trench warfare has become archetypically associated with the First World War of 1914–1918, when the Race to the Sea rapidly expanded trench use on the Western Front starting in September 1914. By the end of October 1914 the whole front in Belgium and France had solidified into lines of trenches, which lasted until the last weeks of the war. Mass infantry assaults were futile in the face of artillery fire as well as rapid rifle and machine-gun fire. Both sides concentrated on breaking up enemy attacks and on protecting their own troops by digging deep into the ground. Trench warfare also took place on other fronts, including in Italy and at Gallipoli.
92nd Brigade (United Kingdom)
The brigade was first introduced to trench warfare on 21 March by groups being attached to the 36th (Ulster) Division in the line. On 28 March the 10th and 11th Bns relieved Ulster battalions in front of Beaumont-Hamel and Y Ravine, with 12th and 13th Bns in support. Although this was a quiet sector of the line, the battalions suffered their first casualties during this short tour, mainly from German "Minenwerfer"s (trench mortars). Shortly afterwards 31st Division formed its own light trench mortar batteries (TMBs), with the Hull Pals contributing men to 92/1 and 92/2 TMBs for 92 Bde. 10th Battalion also provided working parties to assist the 252nd Tunnelling Company, Royal Engineers, digging the Hawthorn Ridge mine that was to be exploded to launch the forthcoming Battle of the Somme. Over the next weeks the battalions took their turns in the routine of trench holding, working parties, patrolling and trench raiding, with a constant drain on manpower from shelling and snipers.