The Trident I (C4) is a submarine-launched ballistic missile developed by the United States during the Cold War. It was designed to carry nuclear warheads and has a range of approximately 4,000 miles. The missile is launched from U.S. Navy submarines, specifically the Ohio-class submarines, and is part of the U.S. strategic nuclear deterrent force. Introduced in the 1970s, the Trident I was a significant advancement in missile technology, featuring multiple independently targetable reentry vehicles (MIRVs). This capability allows a single missile to strike multiple targets, enhancing its effectiveness in a nuclear deterrent role against potential adversaries.