25 April

1915 (Sunday)

 * Second Battle of Ypres: Germans retake Lizerne; British repulsed at St. Julien.
 * Germans capture and lose summit of Hartmannsweilerkopf (Alsace).
 * Severe fighting near Styrj.
 * Dardanelles: Anglo-French forces land on both shores of the Straits.
 * Russian Black Sea fleet shells the forts of the Bosporus (see 27 March).
 * Herr Dernburg in USA outlines unofficial German peace terms.