#USA The Mk21A entry vehicle, a vital component of the US Sentinel intercontinental ballistic missile (ICBM), has successfully completed a flight test, demonstrating its design and return technology. This vehicle is designed to carry and protect a nuclear warhead during its flight and entry into the atmosphere.

#USA The Mk21A entry vehicle, a vital component of the US Sentinel intercontinental ballistic missile (ICBM), has successfully completed a flight test, demonstrating its design and return technology. This vehicle is designed to carry and protect a nuclear warhead during its flight and entry into the atmosphere.