What is the mission of the Marine Corps as stated in the National Security Act of 1947?

The mission of the Marine Corps, as outlined in the National Security Act of 1947, emphasizes the responsibility to protect the country and follow orders from the President of the United States. This is fundamentally important because it establishes the Marine Corps as both a military branch and a critical component of national defense. The dual focus on protection and obedience to the presidential command underscores the Marine Corps' role as an instrument of U.S. military power, tasked with executing the national defense strategy and responding to various threats to national security.

The context of this mission highlights the Marine Corps' readiness to act in various operational roles, but it primarily reinforces the concept that the Marines operate under the authority of civilian leadership, an essential principle of democratic governance. This responsiveness to the President is vital in maintaining civilian oversight of the military and ensuring that military actions align with the strategic interests of the nation.