An Australian soldier sleeping in his trench shelter during the fighting near Bullecourt, May 1917. Image courtesy Australian War Memorial.
- The Second Battle of Bullecourt enters its second week. Eighteen men from the Orange district have been killed so far; the news of their deaths has not yet reached Orange.
- British troops on the Western Front make small gains south-west of Lens and on the south bank of River Scarpe
- Britain introduces the convoy system in response to the German submarine threat, moving large numbers of merchant ships together under naval protection
- Major-General John J Pershing is appointed commander of the United States Expeditionary Force
- Mikhail Vladimirovich Rodzianko, 5th Chairman of the Duma (Russian State Assembly) affirms Russia’s loyalty to the Allies
