Fulda Gap
The Fulda Gap (German: Fulda-Lücke), an area between the Hesse-Thuringian border, the former Inner German border, and Frankfurt am Main, contains two corridors of lowlands through which tanks might have driven in a surprise attack by the Soviets and their Warsaw Pact allies to gain crossings of the Rhine River. Named for the town of Fulda, the Fulda Gap became seen as strategically important during the Cold War of 1947–1991.