3 May

1915 (Monday)

 * Second Battle of Ypres: Withdrawal to new British line completed.
 * Germans again driven back.
 * Germans continue to advance towards Mitau (Baltic Provinces); 8,200 prisoners reported.
 * Austro-Germans make progress in Galicia and the Carpathians.
 * Dardanelles: Turks unsuccessfully attack the French lines at Gallipoli.
 * Submarine HMS E14 sinks a Turkish gunboat in the Sea of Marmora.
 * Italy denounces the Triple Alliance.
 * Advertisement in American papers states that ships flying the British flag are liable to destruction in the war zone.