unit vs military force

unit and military force both are nouns.

Word	Noun	Adjective	Verb	Adverb
unit	Yes	No	No	No
military force	Yes	No	No	No

As nouns, military force is a hyponym of unit; that is, military force is a word with a more specific, narrower meaning than unit:

unit (noun)	military force (noun)
an assemblage of parts that is regarded as a single entity	a unit that is part of some military service
a single undivided whole
an organization regarded as part of a larger social group
a single undivided natural thing occurring in the composition of something else
any division of quantity accepted as a standard of measurement or exchange
an individual or group or structure or other entity regarded as a structural or functional constituent of a whole