war machine vs occupier

war machine and occupier both are nouns.

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

war machine (noun)	occupier (noun)
the military forces of a nation	someone who lives at a particular place for a prolonged period or who was born there
	a member of a military force who is residing in a conquered foreign country