- Day 845 of the war
- British soldiers on the Western Front advance north and south of the Ancre and reach the outskirts of Grandcourt, as General Sir Douglas Haig calls an end to the Battle of the Somme. The battle has lasted 141 days and resulted in more than 1,200,000 casualties: The British Army suffered 419,654 casualties, the French 204,253 and the Germans nearly 500,000. Haig claims the offensive is a victory, however the situation is more a stalemate: Allied forces have captured just 12 kilometres of land and failed to break the German defence. The battle was, however, successful in diverting German troops from the Battle of Verdun.
- German troops evacuate Monastir in Serbia
- British forces defeat German troops at Lupembe in German East Africa