Forum DDR Grenze (in German and English, with pictures and videos) Allied military trains crossing the zonal border at Marienborn. Includes 1969 sound clip with guard dogs. Disturbed Ground: Journeys along the remnants of the Iron Curtain. A free book by Eron Witzel about a series of journeys along the remnants of the border in 2003. (In English) Grenzer. Documents the soldiers on both sides who guarded the inner German border during the Cold War. (In English) Other European Green Belt. An initiative to turn the length of the former Iron Curtain into an international network of protected areas for wildlife. (In English) Das Grünes Band. Project of the conservation organisation BUND to preserve the inner German border as a nature reserve. (In German) Inner German border Cold War Reunification National unifications Germany–Soviet Union relations Revolutions of 1989 Reunification de:Innerdeutsche Grenze es:Frontera interalemana fr:Frontière intérieure allemande nl:Duits-Duitse grens pt:Fronteira interna alemã fi:Saksojen välinen raja sv:Inomtyska gränsen