terrorist group vs Army of the Pure

terrorist group and Army of the Pure both are nouns.

Word	Noun	Adjective	Verb	Adverb
terrorist group	Yes	No	No	No
Army of the Pure	Yes	No	No	No

terrorist group (noun)	Army of the Pure (noun)
a political movement that uses terror as a weapon to achieve its goals	a brutal terrorist group active in Kashmir; fights against India with the goal of restoring Islamic rule of India