The Allies triumphed in World War II, although they had more help than is commonly recognized. At a high cost in lives, a flow of raw materials in the Southern Hemisphere was key to ensuring Allied victory, as were military bases supporting the North African campaign, the Battle of the Atlantic, the invasion of Sicily, and fending off attacks on the Panama Canal. Allies secured loyalty through espionage and diplomacy—with help from Hollywood's propaganda films—even as Mexican pilots flew in the Philippines and 25,000 Brazilians breached Italy's Gothic Line. South America's loyalty was not absolute, however, and here Mary Jo McConahay also describes the greatest mass flight of criminals of the century, as Nazis escaped to the Americas.