countermarch vs military machine

countermarch and military machine both are nouns.

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

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

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