Balkan nation vs Balkan state

Balkan nation and Balkan state both are nouns.

Word	Noun	Adjective	Verb	Adverb
Balkan nation	Yes	No	No	No
Balkan state	Yes	No	No	No

As nouns, Balkan nation and Balkan state are synonyms defined as:

Balkan nation and Balkan state: any one of the countries on the Balkan Peninsula

Other synonyms of Balkan nation include Balkan country.

Balkan nation (noun)	Balkan state (noun)
any one of the countries on the Balkan Peninsula	any one of the countries on the Balkan Peninsula