The conventional submarine that carries ballistic missiles — South Korea's KSS-III is a large, indigenous AIP boat with a vertical launch system for submarine-launched ballistic missiles, a strike capability almost unheard of outside nuclear-powered navies. Later boats add lithium-ion power.
The People's Liberation Army Navy's most numerous modern surface combatant — a 4,000-tonne multi-role frigate with a 32-cell VLS, YJ-83 anti-ship missiles, and a global operational footprint built on Gulf of Aden anti-piracy deployments.