High Quality Content by WIKIPEDIA articles! An intercontinental ballistic missile (ICBM) is a ballistic missile with a range of more than 5,500 kilometres (3,400 mi) typically designed for nuclear weapons delivery (delivering one or more nuclear warheads). Most modern designs support multiple independently targetable reentry vehicles (MIRVs), allowing a single missile to carry several warheads, each of which can strike a different target.