World War One Diary for Thursday, June 28, 1917:
France: 14,000 US regulars and marines (2/3 recruits) land at St Nazaire.
Verdun: Fierce fighting west of Hill 304 (and Mort Homme on June 30). Germans capture some trenches until July 2.
Artois: BEF First Army in two attacks advances on 2-mile front south of river Souchez; Canadians secure most of Avion; 46th Division clears Hill 65; 15th Infantry Brigade (5th Division) captures position on edge of Oppy Wood under cover of smoke, previous assaults without failed bloodily.
Galicia: Preliminary Russian shelling (including Royal Navy Air Service manned trench mortars) from 0400 hours, bridge behind Brzezany blown up.
Germany: German Admiralty orders U-boats to act off France and Italy as well as severing Salonika transport route, neutral ships in British convoys to be treated as hostile (June 30).