Voyage to the Bottom of the Sea named for the radio message he sent to the Chief of Naval Operations to announce that "Nautilus" had reached the pole. His second book about these missions, "The Ice Diaries: The Untold Story of the Cold War's Most Daring Mission" (with Don Keith), was completed shortly before Anderson's death. This second book includes many previously classified details. On March 17, 1959, the nuclear submarine , under the command of Commander (later Vice Admiral) James F. Calvert, became the first submarine to surface at the North Pole. While at the Pole, her crew scattered the ashes of Arctic explorer Sir Hubert
Nuclear weapons and the United Kingdom remain classified. Much of the HEU supplied by the US was used not for weapons, but as fuel for the growing fleet of UK nuclear submarines. Under the MDA, the US supplied the UK with not just nuclear submarine propulsion technology, but a complete S5W pressurised water reactor of the kind used to power the US submarines. This was used in the Royal Navy's first nuclear-powered submarine, , which was launched in 1960 and commissioned in 1963. The S5W had a Nuclear reactor core that used uranium enriched to between 93 and 97 per cent uranium-235. Reactor technology was transferred