military machine vs countermarch

military machine and countermarch both are nouns.

Word	Noun	Adjective	Verb	Adverb
military machine	Yes	No	No	No
countermarch	Yes	No	Yes	No

military machine (noun)	countermarch (noun)
the military forces of a nation	(military) a march in the reverse direction or back along the same route

military machine (verb)	countermarch (verb)
	change the order of soldiers during a march
	march back along the same way