UNRESTRICTED U-BOAT WAR. Germany declares ‘War Zone’ around British Islands as from February 18. All vessels including neutrals liable to be sunk by U-boats (only 30 available at start). Pohl replaces Ingenohl as C-in-C High Seas Fleet, Bachmann new Chief of Naval Staff.
Channel: Second Royal Navy Q-ship Lyons prepared for service. She patrols without success.
Artois: Slight French advance at Ecuries (Arras-La Bassee).
Britain: The King and Kitchener inspect 1st Canadian Division on Salisbury Plain.
Northcliffe letter to Bonar Law why French allow journalists at front, but not British (ban lifted on May).
France: Reconstruction Commission appointed.
Canada: Parliament votes $100 millions war credit and authorizes $50 millions war bonds.