Wolf's Lair
Wolf's Lair (German: Wolfsschanze; Polish: Wilczy Szaniec) was Adolf Hitler's first Eastern Front military headquarters in World War II. The complex became one of several Führer Headquarters in parts of Eastern Europe. Organisation Todt built it for the start of Operation Barbarossa – the invasion of the Soviet Union – in 1941. It is also the site of the 20 July Plot in 1944.