U.S. Marine Corps

Concepts & Programs

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Amphibious and Prepositioning Ships

Last Revised: April 15, 2015, 2:00 pm

The United States is a Global Maritime Nation and is critically dependent on the global commons for our livelihood. Over 90 percent of the world’s commerce travels by sea. Global populations continue to shift to the littoral regions along the oceans’ coastlines, and 21 of the world’s 28 megacities lie within 62 miles of a coastline. Protecting our citizens, allies, and interests in this global system is necessary for both our prosperity and security.

The sea provides the primary global common through which American power is projected. Our Marines (an inherently naval force) and the amphibious warships which carry them, use the oceans as maneuver space in order to influence potential crises from the sea without forcing escalation or aggravating sovereignty. Amphibious forces are designed to provide a wide range of capabilities from the sea. Our Marines can linger unseen over-the-horizon or provide a visible deterrent. Our presence equals access, which creates options and decision space for our Nation’s leaders. With modern aviation and surface connectors, our forces can provide a kinetic strike or responsive maneuver from hundreds of miles out to sea.

  • About Concepts and Programs

    The vision of the Concepts and Programs project is to provide political and military leaders with timely, accurate, and relevant information. The Concepts and Programs project is the premier strategic communications vessel the Marine Corps relies on to inform Congress, the Office of Secretary of Defense, Chairman of the Joint Chiefs of Staff, and Think Tanks about the Corps’ vision.