Over the past decade, on battlefields in Iraq and Afghanistan, the U.S. Marine Corps has enhanced its reputation as an elite fighting force. But as the U.S. military role in that region winds down, the Corps’ main focus is shifting from land warfare back to expeditionary warfare. Commandant General James F. Amos alluded to this Marine forte when he wrote in the November issue of Proceedings that America’s “leaders need a ready force that can be committed at a moment’s notice to buy time for strategic decision-making. . . . Marines are that force.”