Defense Department vs Ballistic Missile Defense Organization

Defense Department and Ballistic Missile Defense Organization both are nouns.

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

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