Operation Grapple with the American Manhattan Project in August 1943. Many of Britain's top scientists participated in the British contribution to the Manhattan Project. After the war, fearing that Britain would lose its great power status, the British government resumed the atomic bomb development effort, now codenamed High Explosive Research. The successful test of an atomic bomb in Operation Hurricane in October 1952 represented an extraordinary scientific and technological achievement, but Britain was still several years behind the United States in nuclear weapons technology. In July 1954, the Cabinet decided to develop the hydrogen bomb. The United Kingdom Atomic Energy Authority Atomic
Action of 12 October 1950 be destroyed during operations in that area. Sometime in 1952, Lieutenant McMullen received an anonymous package containing the "Pirate"s battle flag and on May 28, 1985, it was donated to the Naval Historical Center and is on display at the Korean War exhibit. Action of 12 October 1950 The Action of 12 October 1950 was a battle fought during the Korean War. While conducting Operation Wonsan against sea mines in Wonsan Harbor, a squadron of US Navy warships was attacked by North Korean Army (KPA) batteries. During the operation, two US ships struck mines and sank while the remaining vessels