Mike Thomson examines the origins of Britain' s wartime Home Guard and it's a far cry from Dad's Army. Show more

Mike Thomson explores newly released documents which suggest that Éamon de Valera's Fianna Fáil government secretly cooperated with the British to crush the IRA in the 1930s. Show more

In 1942, British troops were fighting the Vichy French. So why were the British Chiefs of Staff in secret contact with them, behind Churchill's back? Mike Thomson investigates. Show more

Radio 4's investigative history series. Mike Thomson reveals the complex motives behind the 1949 assassination of the young British governor of Sarawak. Show more

Mike Thomson explores Britain's role in thwarting attempts on the lives of Joshua Nkomo and Robert Mugabe in the run-up to Zimbabwean independence in 1980. Show more

Mike Thomson investigates the role of the BBC Hungarian Service in World War II and asks if it withheld information that could have saved thousands of lives. Show more

Sanchia Berg uncovers the career of an MI5 agent who risked violence to expose British fascists and kidnap in postwar Vienna - only to find himself frozen out by his own Service. Show more

Chinese ambassador to the Soviet Union Fu Bingchang had an insider's view of the beginnings of the Cold War. His granddaughter Yee Wah Foo opens up his diaries for the first time. Show more

As part of Radio 4's Cold War season, Document unearths new evidence from key moments in the 1940s and 1950s. Here, Gordon Corera re-examines the CIA's attempt to subvert Albania. Show more

Jeremy Duns examines leaked documents which suggest close links between MI6 and the UK media during the Cold War. Spies George Blake and Kim Philby are among those under suspicion. Show more

Nick Rankin tells the story of SOE operative Hugh Mallory Falconer through a report he wrote in French about his vital part in the Allied invasion of North Africa in 1942. Show more

Anne McElvoy explores the documents telling the story of East German academic Jurgen Kuczynski and his part in the British atomic bomb spying scandal during WWII. Show more

Gordon Corera investigates a secret fund belonging to the chief of British Intelligence in the 1950s. What did it make possible, and who was the mystery American who donated it? Show more

Jo Fox discovers the transcripts of a Nazi secret radio station broadcasting to Scotland. Show more

Dominic Streatfeild tells the story of Argentine officer Alfredo Astiz, who was captured early in the Falklands conflict and became a diplomatic problem for the British government. Show more

Mike Thomson follows up a CIA document suggesting a senior American cryptologist was working for the Japanese in the run-up to Pearl Harbour and the fall of Singapore. Show more

Mike Thomson examines the role played by the French government and defence industry during the Falklands War, 30 years on. Show more

Mike Thomson re-visits a document that split the country in two and ended a politician's career.

Mark Thompson uncovers evidence that a group of British aristocrats and celebrities helped fascist leader General Franco during the Spanish Civil War.

In the 1950s, did a leading code-machine company give the US National Security Agency secret access to machines they then sold across the world? Gordon Corera reveals new evidence. Show more