fatigue duty vs military

fatigue duty and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
fatigue duty	Yes	No	No	No
military	Yes	Yes	No	No

fatigue duty (noun)	military (noun)
labor of a nonmilitary kind done by soldiers (cleaning or digging or draining or so on)	the military forces of a nation

fatigue duty (adjective)	military (adjective)
	associated with or performed by members of the armed services as contrasted with civilians
	characteristic of or associated with soldiers or the military
	of or relating to the study of the principles of warfare