Home Fronts
Ireland: Royal Commission of Inquiry into Rebellion formed under Lord Hardinge (opens May 18). Lord Wimborne resigns as Lord Lieutenancy (Chief Secretary Birrell resigned May 3).
FranceÂ: 17 British conscientious objectors refuse Army orders outside Le Havre.
Western Front
Verdun: German assault on Hill 287. French counter-attack at Mort Homme.
Southern Fronts
Salonika: Milne in command of British Salonika Army (for duration of war); Sarrail occupies Greek frontier Fort Dovatepe between Vardar and Stuma.
Air War
Sudan: 2 Royal Flying Corps planes and airfield ready at Abaid for operations against Sultan of Darfur.
Neutrals
Greece: French general Sarrail occupies Greek frontier Fort Dovatepe.