geostrategy vs geopolitics

geostrategy and geopolitics both are nouns.

Word	Noun	Adjective	Verb	Adverb
geostrategy	Yes	No	No	No
geopolitics	Yes	No	No	No

As nouns, geopolitics is a hypernym of geostrategy; that is, geopolitics is a word with a broader meaning than geostrategy:

geostrategy: the branch of geopolitics dealing with strategy
geopolitics: the study of the effects of economic geography on the powers of the state

geostrategy (noun)	geopolitics (noun)
the branch of geopolitics dealing with strategy	the study of the effects of economic geography on the powers of the state