April 9 (Fri.)
A final German counter-attack at Les Eparges is repulsed.
April 12 (Mon.)
Germany places 39 British officers in detention barracks as a reprisal against the treatment of submarine prisoners by Great Britain (see March 8 and June 12).
Mesopotamia:—The British are attacked at Shaiba.
April 14 (Wed.)
Mesopotamia:—The Battle at Shaiba ends in the defeat of the Turks.
A Zeppelin raid on the Tyneside.
April 15 (Thur.)
A Zeppelin raid on East Anglia.