Four years before Pearl Harbor, the United States had turned in on itself, mired in the Great Depression and fearing entanglement in another European war. Four years after Pearl Harbor, it accounted for half the world"s economic output and boasted a navy and air force second to none. The period from 1938 to 1941, David Reynolds argues in his brilliant new book, was a turning point in modern American history. Drawing upon his own research and the latest scholarship, Mr. Reynolds shows how Franklin Roosevelt led Americans into a new global perspective on foreign policy, one based on geopolitics and ideology. FDR insisted that in an age of airpower, U.S. security required allies far beyond the Western Hemisphere, and that in an era of dictatorships, American values could and should transform the world. Months before Pearl Harbor, he had popularized the term "second world war." Mr. Reynolds, in his succinct overview of American foreign policy from Munich to Pearl Harbor, shows how the president used his new perspective in responding to international shocks—the fall of France, Hitler"s invasion of Russia, Japan"s drive into Southeast Asia. But one of the signal accomplishments of From Munich to Pearl Harbor is also to explain how the main features of America"s cold war posture (following World War II) were established in the years before the war—a new globalism, a bipolar worldview, the foundations of the military-industrial complex, and the origins of the "imperial presidency." New in the American Ways Series.