Assertion: tank | /r/CapableOf | use direct sighting system
Facets:
value: during wwii
type: TEMPORAL
value: during the korean war
type: TEMPORAL
Source sentences:
text: During WWII and the Korean War, most tanks used a direct sighting system where the gun sights and rangefinders were slaved directly to the gun's barrel but its long range accuracy depended upon the focusing abilities of the individual gunner.