Guidance system combining inertial navigation (self-contained motion tracking) with GPS (satellite-based positioning) for precise trajectory correction in ballistic missiles.

MIRV (Multiple Independently targetable Reentry Vehicle) is a ballistic missile payload that carries several warheads, each capable of being aimed at separate targets after reentry.

Relating to or using nuclear energy, typically fission, for propulsion or power generation in military vessels.

Road-mobile: a deployment mode for ICBMs where the missile is mounted on a wheeled or tracked transporter‑erector‑launcher that can travel on public roads, enabling movement and concealment.

Propellant consisting of a solid mixture of fuel and oxidizer, enabling long-term storage and immediate launch readiness.