ips,
cruising off the south coast of England, attacked and sank the British
patrol boat _Mascot_.

On April 8, 1917, an engagement occurred between British boats and
German destroyers off Zeebrugge on the Belgian coast. One of the
German destroyers was sunk and another was seriously damaged.

Various raids were carried out during April, 1917, against the English
coast. On April 21, 1917, six German destroyers attempted an attack on
Dover. Two of them were sunk by British destroyers. The Germans also
claimed to have sunk two British patrol boats. Six days later, on
April 27, 1917, another German destroyer squadron attacked Ramsgate,
killing two civilians before they were driven off by land batteries.
During another engagement a few days later between British light
cruisers and destroyers and eleven German destroyers off Holland, one
German boat was damaged.

Both Calais and Dunkirk were bombarded by German destroyers. In the
former town some civilians were killed. As a result of the attack on
Dunkirk one French destroyer was sunk.

On May 10, 1917, a squadron of eleven German destroyers about to sail
out of Zeebrugge was attacked by a British naval force and forced back
into the former Belgian harbor, then serving as a German naval base.
Two days later, May 12, 1917, the same British force assisted by an
air squadron successfully attacked Zeebrugge, destroying two submarine
sheds and killing sixty-three persons.

During May, 1917, it was also announced that American warships had
arrived safely in British waters and had begun patrol operations in
the North Sea. At about the same time Japanese warships made their
appearance at Marseilles to assist in the war against submarines
operating off the French coast.

On May 15, 1917, Austrian light cruisers operating in the Adriatic
Sea, sunk fourteen British mine sweepers, torpedoed the British light
cruiser _Dartmouth_, and sunk an Italian destroyer.

An engagement occurred between a French and a German torpedo-boat
flotilla on May 20, 1917, during which one of the French boats was
damaged. A few days later British warships bombarded Ostend and
Zeebrugge. Six German destroyers engaged in a running fight with a
British squadron, as a result of which one German destroyer was sunk
and another damaged. On May 29, 1917, a Russian squadron, operating
along the Anatolian (south) coast of the Black Sea bombarded four
Turkish-Armenian ports and destroyed 147 sailing vessels carr