U. S. Army vs U. S. Army Special Forces

U. S. Army and U. S. Army Special Forces both are nouns.

Word	Noun	Adjective	Verb	Adverb
U. S. Army	Yes	No	No	No
U. S. Army Special Forces	Yes	No	No	No

U. S. Army (noun)	U. S. Army Special Forces (noun)
the army of the United States of America; the agency that organizes and trains soldiers for land warfare	a division of the United States Army that is specially trained for guerilla fighting