war machine vs personnel

war machine and personnel both are nouns.

Word	Noun	Adjective	Verb	Adverb
war machine	Yes	No	No	No
personnel	Yes	No	No	No

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

Other hypernyms of war machine include force.

war machine (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