troops vs personnel

troops and personnel both are nouns.

Word	Noun	Adjective	Verb	Adverb
troops	Yes	No	No	No
personnel	Yes	No	No	No

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

Other hypernyms of troops include force.

troops (noun)	personnel (noun)
soldiers collectively	group of people willing to obey orders
	the department responsible for hiring and training and placing employees and for setting policies for personnel management