military vs military strength

military and military strength both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
military strength	Yes	No	No	No

military (noun)	military strength (noun)
the military forces of a nation	capability in terms of personnel and materiel that affect the capacity to fight a war

military (adjective)	military strength (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