How a Secret Weapon Changed WWII: The Untold Story of the 88mm Flak What if one of WWII’s most feared weapons was built in secret to bypass international law? German engineers moved the development of the 88mm Flak gun to Sweden to avoid the Treaty of Versailles — and that hidden strategy changed the course of warfare. From its debut in the Spanish Civil War to taking down tanks in North Africa and defending German skies, the 88 became legendary. Even captured units were later used by Allied for