Italian Front: Cadorna sacks General Brusati of First Army for latter’s over-aggressive dispositions (2nd and 3rd lines neglected), General Count Pecori-Giraldi replaces him. 67 battalions and 80 guns reinforce First Army by May 15.
East Africa: Portuguese repulse Germans from Nhika, but 400 repulsed by 45 Germans on river Ruovuma at Mwambo (May 27).
Eastern Atlantic: German U-boat U20 sinks British US-bound liner Cymric (5 lives lost) 140 miles WNW of Fastnet, 37th unarmed liner sunk by U-boats since Lusitania and 4th one in current offensive (despite orders).
Britain: Churchill back from Western Front, speaks in House of Commons following day about Ireland retaining voluntary enlistment, Irish Nationalist Member of Parliament cries ‘What about the Dardanelles ?’.