Why Su-57 Stealth Fighter and S-500 Air Defense System very the dreaded ?
The Sukhoi Su-57 (Russian: Sukhoi Su-57) is the designation intended for a stealth, single-seat, twin-engine multirole fifth-generation jet fighter designed for air superiority and attack operations. The aircraft is the product of the Pak FA (Russian: Pak FA, Russian: Perspective Aviation complex of Frontline Aviation, Perspektivny aviatsionny Kompleks frontovoy aviatsii, literally "Prospective aviation complex of Frontline aviation "), a Fifth-generation fighter programme of the Russian Air Force. Sukhoi's internal name for the aircraft is T-50.
The S-500 prometey (Russian: C-500 Prometheus, Prometheus), also known as 55r6m "Triumfator-M ", is a Russian surface-to-air missile/anti-ballistic missile system intended to replace the A-135 missile system unavailable in use, and supplement the S-400. The S-500 is under development by the Almaz-Antey Air Defence Concern, and with its characteristics it would be much similar to the US Terminal High Altitude Area Defense System.