Hitler demands construction of a defensive wall stretching from France to Norway.
Nazis build concrete submarine pens to protect U-boats from allied attacks.
Scientist Wernher von Braun develops ballistic missiles.
Hitler's powerful Tiger armored tanks.
The most technologically advanced plane of World War II, the Messerschmitt 262, was the world's first jet-powered fighter aircraft.
A look at the extraordinary defenses and kill zones that surrounded Hitler's bunker in Berlin, a subterranean safehouse protected by 13-foot-thick walls.
Julian Forsyth
Adolf Hitler
Robert Meller
Hitler
Ash Holmes
British Solider
Carsten Hayes
Wernher von Braun
Michael Koltes
SS Officer