armed services vs war machine

armed services and war machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
armed services	Yes	No	No	No
war machine	Yes	No	No	No

As nouns, armed services and war machine are synonyms defined as:

Other synonyms of armed services include armed forces, military, military machine.

armed services (noun)	war machine (noun)
the military forces of a nation	the military forces of a nation