The 2nd Battalion was already in Britain on the outbreak of the First World War (1914-18) and so deployed to the Western Front in August 1914, where it remained for the remainder of war. 04.08.1914 Stationed at Tidworth, Wiltshire as part of the 7th Brigade of the 3rd Division. 14.08.1914 Mobilised for war landing at Havre and engaged in various actions on the Western Front including;
1914 -The Battle of Mons and the subsequent retreat, The Battle of Le Cateau, The Battle of the Marne, The Battle of the Aisne, The Battles of La Bassee and Messines 1914, First Battle of Ypres.
1915 - Winter Operations 1914-15, The First Attack on Bellewaarde, The Actions of Hooge, The Second Attack on Bellewaarde.18.10.1915 Transferred to the 7th Brigade of the 25th Division.26.10.1915 Transferred to the 75th Brigade of the 25th Division;

1916 - German attack on Vimy Ridge, The Battle of Albert, The Battle of Bazentin, The Battle of Pozieres, The Battle of the Ancre Heights,
1917 - The Battle of Messines, The Battle of Pilkem.
1918 - The Battle of St Quentin, The First Battle of Bapaume. 21.06.1918 Transferred to the 64th Brigade of the 21st Division.30.06.1918 Transferred to the 89th Brigade of the 30th Division; 1918 - The Battle of St Quentin, The actions at the Somme Crossings, The Battle of Rosieres, The Battle of Kemmel Ridge, The Second Battle of Kemmel Ridge, The Battle of the Scherpenberg, The capture of Neuve Eglise, The capture of Wulverghem, The Battle of Ypres, The Battle of Courtrai. 11.11.1918 Ended the war at Ellezelles east of Renaix, Belgium.
2nd Battalion spent two years in Palestine from 1920 and then remained in India from 1922 to July 1940