Assertion: armory's use | /r/CapableOf | recognize one's commanders
Facets:
value: in the field
type: LOCATION
Source sentences:
text: It is very often claimed that the use of helmets with face guards during this period made it difficult to recognize one's commanders in the field when large armies gathered together for extended periods, necessitating the development of heraldry as a symbolic language, but there is very little actual support for this view.