Question: 20th Century Battlefields was hosted by the radio presenter and historian of what nationality?

full_context: Document 1: Trainspotting Live: Trainspotting Live was a live television program broadcast on BBC Four over three nights from 11 July 2016. It followed on from similar "live" programmes on the BBC such as "Airport Live" and "Volcano Live".
Document 2: BattleGround: 21 Days on the Empire's Edge: BattleGround: 21 Days on the Empire's Edge was released in 2004, and received the Silver Hugo Award for documentaries at the 2004 Chicago International Film Festival. It aired on Showtime and was released on DVD by Home Vision. The film follows the story of Frank al-Bayati, a former Shiite guerrilla traveling back to Iraq for the first time since the 1991 uprising against Saddam Hussein. Al-Bayati was wounded, captured, tortured and then escaped. He spent more than a year in a Saudi Arabian refugee camp before being repatriated to the U.S. Lappé and Marshall follow al-Bayati as he tracks down his family members and capture the emotional reunions. Al-Bayati's optimism for what he calls "liberated Iraq" is countered by the reality the filmmakers find on the ground. A growing insurgency is creating more enemies than it is killing. With candid interviews with top American commanders, the filmmakers capture the U.S. military's inability to grasp the nature of their enemy. In addition, Lappé and Marshall bring a Geiger counter and conduct their own radiation tests on Iraqi armor that has been hit by American shells. They find evidence of the use of depleted uranium, the controversial radioactive metal used in some American munitions.
Document 3: Peter Hobday (presenter): Peter James Hobday (born 16 February 1937) was a presenter on the early-morning BBC Radio 4 programme "Today". He was the anchorman for the award-winning "The Money Programme" on BBC television. He helped launch the late night current affairs programme "Newsnight" on BBC2, where he was both an anchorman and economic specialist. He also helped launch "In Business" on Radio 4.
Document 4: Melvyn Bragg: Melvyn Bragg, Baron Bragg, {'1': ", '2': ", '3': ", '4': "} , (born 6 October 1939) is an English broadcaster, author and parliamentarian. He is best known for his work with ITV as editor and presenter of "The South Bank Show" (1978–2010), and for the Radio 4 discussion series "In Our Time".
Document 5: Peter Snow: Peter Snow, CBE (born 20 April 1938) is a British radio and television presenter and historian, best known as an analyst of election results. He presented the 2016 BBC series, "Trainspotting Live", along with co-presenters Dr Hannah Fry and Dick Strawbridge.
Document 6: Forgotten Voices: A series of audio tapes and books put together by the Imperial War Museum (IWM), the Forgotten Voices series brings the IWM's sound archive to life. The sound archive features thousands of interviews with people who survived wars in which the British were involved in the 20th Century. Each book has been compiled by an individual 'author', though with the exception of the introduction to each chapter, almost the entirety of each book is made up of the archive extracts.
Document 7: Peter Snow (disambiguation): Peter Snow (born 1938) is a British television and radio presenter.
Document 8: Forgotten Voices of the Second World War: Forgotten Voices of the Second World War consists of interviews with soldiers, sailors, airmen and civilians of most nationalities who saw action during World War II. The interviews were drawn from the Imperial War Museum's sound archive. Many of the recordings had not been heard since the 1970s. As well as putting the interviews into chronological and campaign order, Arthur also puts the surrounding events into context.
Document 9: 20th Century Battlefields: 20th Century Battlefields is a BBC documentary television series hosted by television and radio personality Peter Snow, and his son Dan Snow.
Document 10: The Battle of San Pietro: The Battle of San Pietro is a documentary film directed by John Huston about the Battle of San Pietro Infine sixty miles from Naples during World War II. It was shot by Jules Buck. It was released in the U.S. in 1945 but shown to U.S. troops earlier.
Document 11: Peter Snow (priest): Peter Snow (executed at York, 15 June 1598) was an English Roman Catholic priest. He is a Catholic martyr, along with Ralph Grimston who died with him, beatified in 1987. Their liturgical celebration is on 15 June.
Document 12: Peter Snow (doctor): Dr Peter Snow (1935 – 28 February 2006) was a general practitioner who served the New Zealand rural community of Tapanui for over 30 years. He was president of the Royal New Zealand College of GPs from 1998–99 and received their highest honour, Distinguished Fellowship, in 2001. He was a member of the Otago Hospital Board and its successor, the District Health Board.
Document 13: World War 1 in Colour: World War 1 in Colour is a documentary narrated by Kenneth Branagh. The first of its six parts aired on 23 July 2003 in the United Kingdom. It was released on DVD in the United States as "World War 1 in Color" on 10 May 2005. The documentary consists of colourised footage from World War I.
Document 14: Peter Rowell: Peter Rowell (born 17 June 1958) is an English former radio and television presenter.
Document 15: The 20th Century: The Twentieth Century was a documentary television program sponsored by the Prudential Insurance Company that ran on the CBS network from 20 October 1957 until 4 January 1970. It was hosted by Walter Cronkite. The opening and closing theme music was written by composer George Antheil. The program presented filmed reports on news and cultural events that were important for the development of the 20th century. The show did not just present the events, but also interpreted them. Such subjects as World War I and major assassinations were presented in context.
ground_truth: British