Which act originally established the official mission of the United States Marine Corps?

Which act originally established the official mission of the United States Marine Corps?

• A. National Security Act of 1947
• B. Stafford Act
• C. Defense Reorganization Act
• D. National Security Act of 1980

Answer: (A)

National Security Act of 1947 established the modern framework for the U.S. military, creating the Department of Defense and placing the Marine Corps as the naval service with a defined role to provide power projection and expeditionary capabilities in support of national security. This formalized the Marines’ official mission within the postwar defense structure, giving their unique duties a clear and codified place alongside the Navy. The other acts address areas like disaster relief or organizational reshuffles that do not define the Marine Corps’ mission, so they don’t fit the question’s focus.

National Security Act of 1947 established the modern framework for the U.S. military, creating the Department of Defense and placing the Marine Corps as the naval service with a defined role to provide power projection and expeditionary capabilities in support of national security. This formalized the Marines’ official mission within the postwar defense structure, giving their unique duties a clear and codified place alongside the Navy. The other acts address areas like disaster relief or organizational reshuffles that do not define the Marine Corps’ mission, so they don’t fit the question’s focus.