Global air mobility is an American invention. During the twentieth century, other nations developed capabilities to transport supplies and personnel by air to support deployed military forces. But only the United States mustered the resources and will to create a global transport force and aerial refuelling aircraft capable of moving air and ground combat forces of all types to anywhere in the world and supporting them in continuous combat operations. Whether contemplating a bomber campaign or halting another surprise attack, American war planners have depended on transport and tanker aircraft to launch, reinforce, and sustain operations. Air mobility has also changed the way the United States relates to the world. American leaders use air mobility to signal friends and enemies of their intent and ability to intervene, attack, or defend on short notice and powerfully. Stateside air wings and armoured brigades on Sunday can be patrolling the air of any continent on Wednesday and taking up defensive positions on a friend's borders by Friday. This capability affects the diplomacy and the calculations of America and its friends and enemies alike. Moreover, such global mobility has made America the world's philanthropist. From their earliest days, American airlift forces have performed thousands of humanitarian missions, dropping hay to snow-bound cattle, taking stranded pilgrims to Mecca, and delivering food and medicine to tsunami stricken towns. AUTHOR: Robert C. Owen is a professor in the Department of Aeronautical Science at Embry-Riddle Aeronautical University-Daytona Beach. He teaches courses in aviation operations, law, and history and conducts research in national security affairs independently and as an adjunct to the Rand Corporation and the Air Force Research Institute. Owen holds a master's degree in African studies from UCLA and a PhD in history from Duke University. SELLING POINTS: Examines how air mobility, and air power, has been elevated by America's military to an art unequalled by any other nation Chronicles the achievements of a uniquely American invention which in addition to providing support to ground troops and implementing strategic military actions has made the U. S. the world's philanthropist during humanitarian crises in natural disasters of every kind in every part of the world Owen is a professor in the Department of Aeronautical Science at Embry-Riddle Aeronautical University - Daytona Beach.