Church at Savy, mined by the Germans, April 1917. Image courtesy Imperial War Museum © IWM (Q 2088).
- British troops capture Savy and Savy Wood on the Western Front
- French forces drive back German soldiers to Vauxaillon, to the northeast of Soissons
- The German bombardment of Reims begins
- The armed US steamer Aztec is torpedoed near Brest; 28 crewmembers drown
