- Day 970 of the war
- British troops on the Western Front take Roisel, east of Peronne, as the French occupy the right bank of Oise from north of Vaudreuil to La Fere and progress along the east bank of Ailette River.
- The French government protests against the barbarity and devastation caused by the German army in evacuated French territory
- Russian armies on the Eastern Front pledge loyalty to the new Provisional Government