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

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

Silo-based: a launch configuration in which an intercontinental ballistic missile is stored and launched from a hardened underground silo.

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

Relating to nuclear weapons that derive destructive power from both fission and fusion reactions, typically used in intercontinental ballistic missiles.