RAND, 8 Sep 08: After the War: Nation-Building from FDR to George W. Bush
Beginning with the post–World War II occupations of Germany and Japan, the United States has undertaken eight significant nationbuilding operations over the past 60 years. The planning for postwar nation-building in Germany and Japan began under President Franklin D. Roosevelt and was carried out under President Harry S. Truman.

Subsequent operations during the post–Cold War era were initiated and conducted by President George H. W. Bush and President William J. Clinton, respectively. The United States has subsequently taken the lead in post–September 11, 2001, nation-building under President George W. Bush in Afghanistan and Iraq. In each of the eight cases presented here, presidential decisionmaking and administrative structure have, at times, worked in favor of the nation-building goals of the U.S. government and military and those of its coalition partners and allies. In other cases, these elements have hindered the achievement of these goals or have had negative effects on nation-building outcomes.

This monograph assesses the ways in which the management styles and structures of the administrations in power prior to and during nation-building operations affect the goals and outcomes of such operations. It also evaluates the nature of the society being reformed and of the conflict being terminated. The findings presented here should be of interest to policymakers and others interested in the history of U.S. nation-building, lessons learned from these operations, and the outcomes of U.S. involvement in rebuilding various types of societies......
Complete 190-page monograph at the link.