America's Wars: Bloodiest Battles – slideshow by LIFE magazine Instances of Use of United States Forces Abroad, 1798–1993 by Ellen C. Collier, Specialist in U.S. Foreign Policy, Foreign Affairs and National Defense Division Conversations with History: Militarism and the American Empire – With Chalmers Johnson, President of the Japan Policy Research Institute – RealVideo format. Congressional Research Service report RL30172: Hundreds of instances of the employment of U.S. military forces abroad