- British and Indian prisoners from Kut-al-Amara continue to arrive in Baghdad. Starving and seriously ill, the men are forced to march without water or protection from the elements. About 70% of the British prisoners die during the march, or later in prison camps (1,750 of the 2,500 men that commenced the march on 6 May). The Indian prisoners were treated marginally better than the English; of the 9,300 Indian troops 2,500 died. The British Death March in Mesopotamia
- In the Battle of Verdun German troops under the command of General Max von Gallwitz storm Mort Homme but fail to take the summit