armed forces vs personnel

armed forces and personnel both are nouns.

Word	Noun	Adjective	Verb	Adverb
armed forces	Yes	No	No	No
personnel	Yes	No	No	No

As nouns, personnel is a hypernym of armed forces; that is, personnel is a word with a broader meaning than armed forces:

Other hypernyms of armed forces include force.

armed forces (noun)	personnel (noun)
the military forces of a nation	group of people willing to obey orders
	the department responsible for hiring and training and placing employees and for setting policies for personnel management