Explanation:

• Russia successfully test-fired its new S-500 air defence missile systems, from a southern training range, Kapustin Yar, on July 20, 2021. It hit a high-speed ballistic target as planned.
• The S-500, also known as Prometey or 55R6M “Triumfator-M”, is a Russian surface-to-air missile/anti-ballistic missile system which is the most advanced anti-missile system in the world and is capable of countering attacks from space.