Ballistic Missile Defense Organization vs Defense Department

Ballistic Missile Defense Organization and Defense Department both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ballistic Missile Defense Organization	Yes	No	No	No
Defense Department	Yes	No	No	No

Ballistic Missile Defense Organization (noun)	Defense Department (noun)
an agency in the Department of Defense that is responsible for making ballistic missile defense a reality	the federal department responsible for safeguarding national security of the United States; created in 1947