The B83 is a thermonuclear bomb developed by the United States. It is one of the most powerful nuclear weapons in the U.S. arsenal, with a maximum yield of 1.2 megatons. The B83 was designed to replace older bombs and enhance the country's strategic capabilities during the Cold War. This bomb is primarily deployed by the U.S. Air Force and can be delivered by various aircraft, including the B-52 Stratofortress and B-2 Spirit. The B83 features advanced safety and security measures, making it a critical component of the U.S. nuclear deterrent strategy.