Members of the 2nd Australian Division in the trenches in the Bois Grenier sector, France, 3 June 1916. The soldier in the foreground is looking through a periscope; the man to his left is holding a Lewis gun. Image courtesy Australian War Memorial.
- A Canadian counter-attack regains much of the lost ground in the Battle of Mount Sorrel near Ypres in Belgium
- Allied forces occupy all official buildings in Salonika and proclaim martial law
- French forces repulse powerful German attacks on Vaux Fort in the Battle of Verdun
- British forces occupy Namena in German East Africa after three days of fighting
