Painting of Lake Doiran by Thomas Cantrell Dugdale, 1917. The high ground in the distance is under artillery bombardment, with numerous white clouds showing where shells have fallen. Image courtesy Imperial War Museum © IWM (IWM ART 1864).
- Day 1010 of the war
- The Second Battle of Doiran ends on the Salonika front with a Bulgarian victory over the Allies
- German troops attack and recapture Fresnoy on the Western Front
- Serbian troops seize useful vantage points in the Moglenitsa Valley in central Macedonia
- Pressured by Great Britain and the US Liberia severs diplomatic relations with Germany
