13 March

1915 (Saturday)

 * German attacks fail, and French gain ground, in counter-attacks in Champagne.
 * Belgians gain ground on the Yser.
 * Germans bombard Ypres.
 * German offensive checked near the Augustovo Woods and Przasnysz.
 * Austrian attacks fail in the Carpathians and East Galicia.
 * Battle of Neuve Chapelle ends (see 10 March).
 * Agreement signed by French and Belgian Governments suspending Franco-Belgian Convention of 30 July, 1891, regarding military service laws.
 * Swedish SS Hanna torpedoed without warning. First neutral ship actually sunk by German submarine (see 25 and 28 March, and 19 February).