In the late 1930s and early 1940s, Nazi Germany and its fascist allies, Japan and Italy, were well on their way to conquering their neighbors in Europe and Asia. The United States – while protected by the Atlantic and Pacific Oceans – hoped to stay out of the gathering conflict. But Democratic President Franklin Roosevelt was able to send vast amounts of military aid to the United Kingdom, and then, to the Soviet Union, in the hopes of halting the military advances of these fascist nations. He managed this over the vociferous protests of the America-Firsters, primarily very rightwing Congressi…