26 January

1915 (Tuesday)

 * Continued fighting near Craonne; successful French counter-attacks.
 * Russian success near the Dukla Pass.
 * Turks renew their attacks in Armenia.
 * Turkish advance on Egypt through Sinai begins (see 2 February).
 * Patrol engagement near El Kantara (Suez Canal).
 * Loss of the auxiliary cruiser HMS Viknor is announced.
 * Triple Entente Governments agree to hold "Pact of London" applicable to war with Turkey (see 5 September, 1914).