|Part of Führerhauptquartiere| |Forest Gierłoż, Rastenburg,
Poland| Entrance to the Führer Bunker at the Wolfsschanze.
|Type||Blast-resistant camouflaged concrete bunkers| |Built
by||Hochtief AG |2 m (6 ft 7 in) steel-reinforced concrete| |In
use||Third Reich| |Demolished||24-25 January 1945| |Events||20
July Plot| Location within present-day borders of the Wolf's
Lair. Wolf's Lair (German: Wolfsschanze) was Adolf Hitler's
first Eastern Front military headquarters in World War II. The
complex, which would become one of several Führerhauptquartiere
(Führer Headquarters) located in various parts of occupied
Europe, was built for the start of Operation Barbarossa - the
invasion of the Soviet Union - in 1941. It was constructed by
Organisation Todt. The top secret, high security site was in the
Masurian woods about 5 miles (8.0 km) from the small East
Prussian town of Rastenburg (now Kętrzyn in Poland). It was
guarded by personnel from the SS Reichssicherheitsdienst and
troops from the Wehrmacht's armoured Führer