LGM-118A Peacekeeper missile system being tested at the Kwajalein Atoll in the Marshall Islands. The Peacekeeper was a land-based ICBM deployed by the United States starting in 1986. Each rocket could carry up to 10 re-entry vehicles, each with a nuclear warhead with the explosive power of up to 300 kilotons (twenty-five times the power of the bomb dropped on Hiroshima during World War II).