USS Triton Circles Globe Underwater: Cold War Feat

A nuclear submarine slipped beneath the surface near New London, Connecticut, on February 16, 1960, and did not come up for air until it had circled the entire planet. The USS Triton, commanded by Captain Edward L. Beach Jr., completed the first submerged circumnavigation of the globe in 84 days, traveling 41,500 miles along the route Ferdinand Magellan had sailed on the surface 440 years earlier. The Cold War’s most dramatic demonstration of submarine capability was kept completely secret until it was over. The Triton was the largest submarine in the US Navy, 447 feet long with two nuclear reactors — the only American submarine ever built with dual reactors. Captain Beach, a decorated World War II submarine veteran and bestselling author, received his orders directly from the Pentagon: circumnavigate the globe submerged, proving that American nuclear submarines could operate anywhere in the world’s oceans indefinitely without surfacing. The voyage, code-named Operation Sandblast, followed Magellan’s route through the Atlantic, around the Cape of Good Hope (Magellan went around South America, but Beach was directed south of Africa), across the Indian Ocean, through the Pacific, and home. The Triton encountered no mechanical failures that forced surfacing, though Beach brought the ship to periscope depth several times for navigation fixes and once to transfer a sick sailor to another vessel. The crew of 183 men lived and worked entirely underwater for nearly three months. The timing was deliberate. President Eisenhower wanted a spectacular American achievement to counter Soviet space successes, and he announced the circumnavigation on May 10, 1960 — the day before the U-2 spy plane incident embarrassed the administration. Beach received the Legion of Merit from Eisenhower personally. The Triton proved that nuclear submarines had made the world’s oceans transparent to American naval power, a strategic reality that remains the foundation of nuclear deterrence today.