America’s World War II military was a force of unalloyed good. While saving the world from Nazism, it also managed to unify a famously fractious American people. At least that’s the story many of us have long told ourselves. In this lecture, historian Thomas A. Guglielmo offers a decidedly different view. Drawing from more than a decade of extensive research and stitching together stories long told separately — of race and the military; of high command and ordinary GIs; and of African Americans, white Americans, Japanese Americans, and more — Guglielmo stresses not national unities but racist divisions as a defining feature of America’s World War II military and of the postwar world it helped to fashion.