Welcome to the USMC! The United States Marine Corps, is a branch conducted by the Department Of The Navy. Every Marine fights with our Nation's expectation to represent it well at home and abroad. United States Marines are a family that fights together, finding individual purpose in a collective cause—the protection of our Nation and the advancement of its ideals. The Marine Corps mission reflects every Marine's purpose. In essence, our Nation is that purpose. In our world, in ourselves, and in our way, there are conflicts, challenges, and obstacles that must be fought confidently and defeated convincingly for our Nation to prevail. Enlist today!