Before revision: In October 1941, before the United States entered World War II, President Franklin D. Roosevelt announced that he had "a secret map" of South America titled 'Luftverkehrsnetz der Vereinigten Staaten Süd-Amerikas Hauptlinien'.
After revision: North AmericaIn October 1941, before the United States entered World War II, President Franklin D. Roosevelt announced that he had "a secret map" of South America titled 'Luftverkehrsnetz der Vereinigten Staaten Süd-Amerikas Hauptlinien'.