Russia's S-400 Triumph air defense system is considered one of the most modern and powerful air defense technologies in the world. It is designed to destroy air threats with long-range missiles. This system can intercept enemy fighter aircraft,

1. Trident Missiles: Developed by US defense company Lockheed Martin, the Trident missile is often the recognised as world’s most expensive weapon with an estimated cost of Rs 5,45,81,37,300, as per a report by Navbharat Times.

President Donald Trump is expected to announce on Tuesday the concept he wants for his future Golden Dome missile defense program — and while it would not be the most expensive option that the ...