call up vs armed forces

call up and armed forces both are nouns.

Word	Noun	Adjective	Verb	Adverb
call up	Yes	No	Yes	No
armed forces	Yes	No	No	No

call up (noun)	armed forces (noun)
an order to report for military duty	the military forces of a nation

call up (verb)	armed forces (verb)
recall knowledge from memory; have a recollection
get or try to get into communication (with someone) by telephone
bring forward for consideration
call to arms; of military personnel
cause to become available for use, either literally or figuratively