prisoner of war camp vs internment camp

prisoner of war camp and internment camp both are nouns.

Word	Noun	Adjective	Verb	Adverb
prisoner of war camp	Yes	No	No	No
internment camp	Yes	No	No	No

As nouns, prisoner of war camp and internment camp are synonyms defined as:

Other synonyms of prisoner of war camp include POW camp, prison camp.

prisoner of war camp (noun)	internment camp (noun)
a camp for prisoners of war	a camp for prisoners of war