From a celebrated military historian, a powerful account of the most pivotal year of the Vietnam War—the cataclysm that forever changed America.The Vietnam War was the greatest disaster in the history of American foreign policy. The conflict shook the nation to its foundations, exacerbating already deep cleavages in American society, and left the country baffled and ambivalent about its role in the world. Year of the Hawk is a military and political history of the war in Viet