Band of Brothers is a ten-part, 11-hour television World War II miniseries, originally produced and broadcast in 2001, based on the book of the same title written by historian and biographer Stephen E. Ambrose. The executive producers were Steven Spielberg and Tom Hanks, who had collaborated on the World War II film Saving Private Ryan (1998). The episodes first aired in 2001 on HBO and are still run frequently on various TV networks around the world. The narrative centers on the experiences of "Easy Company", 2nd Battalion, 506th Parachute Infantry Regiment assigned to the 101st Airborne Division of the United States Army. The series covers Easy's basic training at Camp Toccoa, Georgia, the American airborne landings in Normandy, Operation Market Garden, the Siege of Bastogne, and on to the end of the war, including the taking of the Eagle's Nest. The events portrayed are based on Ambrose's research and recorded interviews with Easy Company veterans. A large amount of literary license was taken with the episodes, with several differences between recorded history and the film version.