According to Reuters, Austin said US-supplied NASAMS air defense systems in Ukraine had intercepted every Russian missile, suggesting 100% success.

U.S. Defense Secretary Lloyd Austin, speaking at the start of a routine virtual meeting of dozens of defense ministers about Russia’s invasion of Ukraine, said that the United States and Poland would work together to gather more information about the explosion, but he did not assign blame.

On the other hand, NATO officials said an errant Ukrainian air defense missile likely caused an explosion in Poland on Tuesday.

The National Advanced Surface-to-Air Missile System (NASAMS) is a ground-based air defense system. The system is designed to protect an area from all types of aerial threats, including aircraft, cruise missiles, and unmanned aerial vehicles.

The NASAMS was first developed in the 1980s as a substitute for the Nike Hercules missile system. The first version of the NASAMS was deployed in Norway in 1995. In addition, the NASAMS has been exported to several countries, including Finland, Spain, and the United Arab Emirates.

NASAMS Launcher
Wassenaar/Katwijk, 19 March 2014 placing helicopters and NASAMs in the context of the NSS at the former Valkenburg Airport (Source: Ministerie van Defensie/Wikimedia)

The NASAMS is a modular system that can be adapted to meet the specific needs of each army. The system consists of three main components: launchers, radars, and command and control systems. The launchers can be mounted on trucks or trailers, and the radars can be mounted on either trucks or stationary platforms. The command and control systems are used to monitor and control the launchers and radars.

The NASAMS uses advanced radar technology to detect aerial threats. The radar can track targets over a range of 120 miles. The radar can also distinguish between friendly and enemy aircraft.

The NASAMS is equipped with AIM-120 AMRAAM air-to-air missiles. The AMRAAM is a medium-range missile that can be fired at targets up to 65 miles away. The missile has a range of Mach 4 and can hit targets moving at speeds up to 500 mph.