- Gerald Benedict Fahy is killed in action in France
- Cuba declares war on Germany
- Panama declares war on Germany
- British forces on the Western front advance north-west of St Quentin to Fresnoy-le-Petit; severe fighting continues near Reims, at Berry-au-Bac
Perimeter defences for church buildings at Berry-au-Bac; a ruined church is in the background. Image courtesy Australian War Memorial.
