“America´s interests and role in the world require armed forces with unmatched capabilities and a willingness on the part of the nation to employ them in defense of our interests and the common good. The United States remains the only nation able to protect and sustain large-scale operations over extended distances. This unique position generates an obligation to be responsible stewards of the power and the influence that history, determination and circumstance have provided.” (Department of Defense, USA, Quadrennial Defense Review Report, February 2010)