territory vs geographic region

territory and geographic region both are nouns.

Word	Noun	Adjective	Verb	Adverb
territory	Yes	No	No	No
geographic region	Yes	No	No	No

As nouns, geographic region is a hypernym of territory; that is, geographic region is a word with a broader meaning than territory:

territory: the geographical area under the jurisdiction of a sovereign state
geographic region: a demarcated area of the Earth

Other hypernyms of territory include geographic area, geographical area, geographical region.

territory (noun)	geographic region (noun)
an area of knowledge or interest	a demarcated area of the Earth
a region marked off for administrative or other purposes
the geographical area under the jurisdiction of a sovereign state