Assertion: artillery's gun | /r/CapableOf | fire creeping barrage
Facets:
value: on german positions
type: LOCATION
Source sentences:
text: During the beginning of the Battle of Passchendaele in 1917, over 3,000 British guns and howitzers fired a “creeping barrage” on German positions, with the infantry advancing fifty yards behind the moving wall of fire and steel.