1 June

1915

 * Air raid in East London continues from 31 May. Civilian casualties include: 7 killed (inc. 4 children) and 33 injured (inc. 7 children).
 * Continued fighting in the "Labyrinth" (north of Arras). French capture trenches at Souchez.
 * Unsuccessful German gas attack west of Warsaw.
 * Austrian aircraft bomb Bari and Brindisi. Italians hold slopes of Monte Nero (across Isonzo), and advance in Adige Valley.
 * Turkish retreat on the Tigris, pursued by naval flotilla.
 * Lord Kitchener made a K.G.