The Tango War by Mary Jo McConahay fills an important gap in World War II history. Beginning in the '30s, both sides were well aware of the need to control not just the hearts and minds but also the resources of Latin America. The fight was often dirty: Residents were captured to exchange for US prisoners of war and rival spy networks shadowed each other across the continent. At all times, it was a Tango War, in which each side closely shadowed the other's steps.

Though the Allies triumphed, at the war's inception it looked like the Axis would win. A flow of raw materials in the Southern Hemisphere, at a high cost in lives, was key to ensuring Allied victory, as were military bases supporting the North African campaign, the Battle of the Atlantic and the invasion of Sicily, and fending off attacks on the Panama Canal. Allies secured loyalty through espionage and diplomacy - including help from Hollywood and Mickey Mouse - while Jews and innocents among ethnic groups - Japanese, Germans - paid an unconscionable price. Mexican pilots flew in the Philippines and 25,000 Brazilians breached the Gothic Line in Italy. The Tango War also describes the machinations behind the greatest mass flight of criminals of the century, fascists with blood on their hands who escaped to the Americas.