April 18 (Thur.)
Lord Milner succeeds Lord Derby as British Secretary of State for War.
The Germans attack in strength from Givenchy to the Lys and are repulsed with heavy loss.
The French attack in the Avre Valley, south-east of Amiens, and advance to the outskirts of Castel.
April 19 (Fri.)
The British gain ground at Givenchy and Festubert.
April 20 (Sat.)
British and German light naval forces are engaged in the Bight of Heligoland.
April 23 (Tues.) St. George's Day.
Guatemala declares war on Germany.