Don Campbell

Historians, veterans, politicians, and anti-war leaders discuss the history of the military draft in the United States through the Vietnam War, and examine the consequences of its replacement with an all-volunteer professional force currently comprising less than one-half of one percent of the population.

Patrick Stewart narrates the investigation into the true origin of Britain's King Arthur and his fabled heroes, and whether or not Camelot exists in some forgotten corner of England.

The history of the Russian Tsars.

Drawing on present day experts and historical records, this program catapults viewers back to the tumult and high drama of the Tudor period to depict an astounding story of sexual intrigue and royal politicking.

Discover what makes Air Force One faster, more secure, more comfortable, and more capable than any other comparable plane.

Take the ultimate guided tour of the most famous plane in the world, and meet the tireless crew charged with operating this global command center in the sky.

National Geographic takes you on an exclusive tour inside Air Force One, part luxury hotel, part super-secret military command post. From its beginnings with President Roosevelt making a secret wartime flight in 1943 - to the historic flight that returned President Kennedy's body to Washington after his assassination - to the closing months of the Clinton administration, Air Force One takes you through the history of the world's most powerful plane. Features exclusive interviews with Presidents George W. Bush, William Jefferson Clinton, George H. W. Bush, and Jimmy Carter.

National Geographic: Icons of Power - Empress of Ambition documents the life and reign of Russia's Catherine the Great, widely considered one of the most controversial rulers in the history of the world.