✦ History

Part of World War I

Second Battle of Ypres

April 22 – May 25, 1915 · Second Battle of Ypres

The German Fourth Army opened with chlorine gas, the first mass use on the Western Front, and shrank the Ypres salient.

On the map Contemporaries

Allies

Central Powers

United Kingdom
France
Canada
British Raj
Belgium
German Empire
Horace Smith-Dorrien military commander Herbert Plumer, 1st Viscount Plumer military commander Arthur Currie military commander
Albrecht, Duke of Württemberg military commander

Strength and losses

Casualties
35,000

Units

Second Army (United Kingdom) 36th Army Corps (France) V Corps (United Kingdom) 1st Canadian Division 1st Cavalry Division (United Kingdom) 28th Division (United Kingdom) 2nd Cavalry Division (United Kingdom) 3rd (Lahore) Division 3rd Cavalry Division (United Kingdom) 45th Infantry Division (France) 47th (1/2nd London) Division 4th Infantry Division (United Kingdom) 50th (Northumbrian) Division 5th Infantry Division (United Kingdom)
4th Army (German Empire) XXVII Reserve Corps (German Empire)

Also involved 3