And each single ICBM or SLBM holds about eight of those in a MIRV configuration, meaning eight separate targets (bases, ports, cities, industrial complexes or what have you) can be targeted and utterly destroyed, IIRC.
Here's how a Peacekeeper test looked downrange (Kwajalein) with dummy warheads:
Post-boost vehicle of an MX intercontinental ballistic missile being loaded 300kt each |