"...As a global power with global interests, the United States must maintain the credible capability to project military force into any region of the world in support of those interests. In his foreword to the “Joint Operational Access Concept” (JOAC), General Martin E. Dempsey, the chairman of the Joint Chiefs of Staff, describes this military imperative: “The Joint Force must maintain the freedom of action to accomplish any assigned mission.”
The advancement and proliferation of disruptive technologies designed to counter power projection are undermining traditional U.S. military advantages. The worldwide growth of anti-access/area-denial (A2/AD) capabilities, the changing U.S. overseas defense posture, and the emergence of space and cyberspace as contested war-fighting domains enable potential adversaries, both state and nonstate, to counter qualitatively superior U.S. and allied forces. These formidable A2/AD capabilities can also cause U.S. and allied forces to operate with higher levels of risk and at greater distances from areas of interest."