Hut 8
The section at Bletchley Park that worked on the German naval Enigma, initially led by Alan Turing.
Hut 8 was one of the wooden huts at Bletchley Park where codebreakers worked. It handled the German naval Enigma traffic, which was harder than the army version. From 1942 the navy's machine had a fourth rotor, which made the traffic far more difficult to read. Alan Turing led the section in the early part of the war.
Hut 8's work was central to the Battle of the Atlantic, where breaking German naval traffic helped convoys avoid U-boats. It was teamwork, and Turing's name has come to stand for rather more than his share of it. Hut 6 handled the army and air force traffic.