military vs peacekeeping operation

military and peacekeeping operation both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
peacekeeping operation	Yes	No	No	No

military (noun)	peacekeeping operation (noun)
the military forces of a nation	the activity of keeping the peace by military forces (especially when international military forces enforce a truce between hostile groups or nations)

military (adjective)	peacekeeping operation (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