- James Griffin is killed in action in France
- Sidney John Fogarty is killed in action in France
- Fred Agland is killed in action in the Battle of Fleurbaix in France
- The Battle of Gueudecourt ends in northern France
- British troops on the Somme capture Beaucourt-sur-Ancre and advance east of Butte de Warlencourt
- Allied forces repulse German attacks at Ablaincourt and Pressoir on the Western Front
- Romanian soldiers on the Eastern Front retreat south of Vulkan Pass, below Torzburg Pass, and engage in severe fighting in Prahova Valley, south of Predeal Pass
- Allied forces on the Southern Front advance on Monastir