The British reach Gouzeaucourt and Epéhy.
The French cross the Crozat Canal.
Sept. 11 (Wed.)
The British capture Vermand and Vendelles, north-west of St. Quentin; south-west of La Bassée they capture the 'Railway Triangle.'
Sept. 12 (Thur.)
The Americans, under General Pershing, attack both flanks of the St. Mihiel salient (the Battle of St. Mihiel): they capture Thiaucourt and other important positions with 8000 prisoners.
The Battle of Havrincourt and Epéhy begins (see Sept. 18): the British capture Mœuvres, Havrincourt, Trescault, and Gouzeaucourt Wood.
West of St. Quentin the British take Holnon Wood and the French capture Savy.
H.M.S. Sarnia (armed boarding-steamer) is sunk by a submarine in the Mediterranean.
The Union Castle liner Galway Castle is sunk by a submarine (154 lives lost).