Jan. 16—French submarine Saphir sunk by Turkish mine at the Dardanelles; Italian gunboat Coatit damaged in the Adriatic.
Jan. 20—Dutch naval patrol boat sunk by a mine, five men being lost.
Jan. 21—German cruiser Karlsruhe reported off Porto Rico.
Jan. 22—German submarine U-19 sinks British freighter Durward.
Jan. 23—German supply ship sunk by Australian cruiser.
Jan. 24—British patrolling squadron under Vice Admiral Beatty defeats German squadron attempting to reach English coast; German battle cruiser Blücher sunk and two other German battle cruisers damaged; British battle cruisers Lion and Tiger damaged; Germans claim three British ships were sunk.
Jan. 28—British Admiralty denies that any British ship was sunk.
Jan. 30—German submarine sinks three British steamers in Irish Channel and chases Liverpool passenger boat.
Jan. 31—German submarine sinks two British steamers in English Channel; third steamer escapes.