June 21—Allied ships bombard Turkish batteries on Asiatic side of the Dardanelles.
June 22—German warships in the Baltic Sea capture five Swedish steamers, lumber laden, bound for England; French battleship St. Louis bombards Turkish batteries on Asiatic side of the Dardanelles.
June 24—British torpedo gunboat Hussar bombards the ports of Chesmeh, Lidia, and Aglelia, opposite Chios, destroying small Turkish vessels and doing other damage.
June 26—Netherlands steamer Ceres is sunk by a mine in the Gulf of Bothnia, crew being saved.
June 30—British torpedo boat destroyer Lightning is damaged off the east coast of England by a mine or torpedo explosion, but makes harbor; fourteen of the crew missing.
July 2—A battle occurs between Russian and German squadrons in the Baltic, between the Island of Oeland and the Courland coast; after a brief engagement the German squadron, outnumbered and outmatched in strength, flees; the German mine layer Albatross is wrecked by Russian gunfire and is beached by her crew; the Russian squadron then sails northward, sighting another German squadron, which is also outmatched in strength; the German ships flee after a thirty-minute fight, a German torpedo boat being damaged; Dutch lugger Katwyk 147 is sunk by a mine in the North Sea, ten of crew being lost.
July 6—Italy closes the Adriatic Sea to navigation by merchant vessels of all countries.
NAVAL RECORD—SUBMARINES
June 16—German submarine sinks British steamer Strathnairn off Scilly Isles, twenty-two of the crew being drowned; German submarines sink British trawlers Petrel, Explorer, and Japonica.
June 17—Austrian submarine torpedoes and sinks Italian submarine Medusa, this being the first instance on record of the sinking of one undersea boat by another; German Admiralty announces the loss of the submarine U-14, her crew being captured by the British; Athens reports that a British submarine has torpedoed and sunk three Turkish transports, loaded with troops, in the Dardanelles above Nagara; German submarine sinks British steamer Trafford, crew being saved.