15th August 1918
Western Front
French complete capture of Lassigny Massif by capture of Alliche farm.
End of Second Battle of Lassigny.
Last German air raid on Paris.
British cross Ancre to Thiepval Wood and make progress between Beaucourt (north of Albert) and Puisieux (north-east of Beaucourt).
Eastern Front
Announcement of British troops at Baku (on west of Caspian Sea) and at Krasnovodsk (on east of Caspian, terminus of Central Asiatic Railway).
First American troops land in Vladivostok, joining Japanese, British, and French troops in the intervention against the Bolsheviks.
Aviation
The first American bomber, the Martin MB-1 or Glenn Martin Bomber, is given a test flight. Nine of these bombers are built before the Armistice. None see service in France.
Political, etc.
Relations between U.S.A. and Bolshevist Government in Russia severed.
Spanish Note to Germany re: shipping losses.
Meeting of Kaiser Wilhelm and Emperor Charles at Main Head Quarters.
Ship Losses:
Balkan (France) The ship was torpedoed and sunk in the Mediterranean Sea. There were at least 102 survivors.
Cubore (United States) The cargo ship was torpedoed and sunk in the Atlantic Ocean 250 nautical miles (460 km) north west of Cape Finisterre, Spain (46°52′N 12°00′W) by
SM U-107 ( Kaiserliche Marine) with the loss of nine crew.
J. M. J. (France) The fishing vessel was sunk in the Atlantic Ocean west of Ouessant, Finistère by
SM U-90 ( Kaiserliche Marine).
Kalps (Russia) The sailing vessel was scuttled in the Atlantic Ocean off Lisbon, Portugal (37°57′N 18°27′W) by
SM U-157 ( Kaiserliche Marine).
Madrugada (United States) The five-masted auxiliary schooner was sunk in the Atlantic Ocean 35 nautical miles (65 km) off Norfolk, Virginia (37°50′N 74°55′W) by
SM U-113 ( Kaiserliche Marine). Her crew survived.
HMS Scott (Royal Navy) The Admiralty type destroyer leader struck a mine laid by
U 71 (Richard Scheurlen) and sank in the North Sea off IJmuiden, North Holland, Netherlands (52°24′N 3°51′E) with the loss of 22 of her crew.
HMS Ulleswater The R-class destroyer struck a mine laid by
U 71 (Richard Scheurlen) and sank in the North Sea off IJmuiden (52°24′N 3°51′E with the loss of five of her crew.