used Prime Minister's Questions in June 2000 to state that the film was an "affront to the memories of the British sailors who lost their lives on this action." Prime Minister Tony Blair said, "I agree entirely with what you say... we hope that people realise these are people that, in many cases, sacrificed their lives in order that this country remained free." Paul Truswell, MP for the constituency of Pudsey, a town closely associated with , wrote to the U.S. president Bill Clinton, who acknowledged that the film's plot was only a work of fiction. The director of the local Horsforth Museum lamented the rewriting of history, saying: "You can't rewrite history and we have to pass on the facts to the younger generation through the schools." The first capture of a naval Enigma machine with its cipher keys from a U-boat was made on 9 May 1941 by of the Royal Navy, commanded by Captain Joe Baker-Cresswell assisted by HMS Aubrietia. The U-boat was . In 1942, the Royal Navy also seized , capturing additional Enigma codebooks. According to Britain's Channel 4, "the captured codebooks provided vital assistance to British cryptographers such as Alan Turing, at the code-breaking facility of Bletchley Park." The United States' involvement in the European Theatre of the Second World War did not commence until mid-1941 with Lend-Lease, and direct, open participation did not begin until the U.S. Navy began engaging the Kriegsmarine in the fall of 1941, months before Pearl Harbor, by which time Enigma machines had already been captured and their codes broken in Europe. An earlier military Enigma had been examined by Polish Intelligence in 1928; the Polish Cipher Bureau broke the Enigma code in 1932 and gave their findings to Britain and France in 1939, just before the German invasion of Poland. Sub Lt. David Balme, the Royal Navy officer who led the boarding party on U-110, called U-571, "a great film" and said that it would not have been financially viable without being "americanised". The film's producers did not agree to his request for a statement that it was a work of fiction, but the end credits dedicate the film to the "Allied sailors and officers who risked their lives capturing Enigma materials" during the Second World War. The credits acknowledge the Royal Navy's role in capturing Enigma machines and code documents from U-110, U-559 and the U.S. Navy's