phalanx vs military force

phalanx and military force both are nouns.

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

As nouns, military force is a hypernym of phalanx; that is, military force is a word with a broader meaning than phalanx:

Other hypernyms of phalanx include force, military group, military unit.

phalanx (noun)	military force (noun)
any of the bones of the fingers or toes	a unit that is part of some military service
a body of troops in close array
any closely ranked crowd of people