Comparing the Cost of the S-400 Air Defence System with Global Alternatives 🛡️ 1. S-400 Triumf (Russia) Cost per unit (India deal): Approx. $5.43 billion for 5 systems , or about $1.08 billion per unit Range: Up to 400 km Target types: Aircraft, cruise missiles, ballistic missiles Key Buyer(s): India, China, Turkey 🔄 Comparison with Other Major Air Defence Systems System Country Estimated Cost per Unit Max Range Key Features S-400 Triumf Russia $1.0–1.2 billion 400 km 4-tier missile system, tracks 80+ targets Patriot PAC-3 USA $1.0–1.5 billion 160 km Combat-tested, modular, mobile THAAD USA $800 million – $1 billion 200 km Designed for high-altitude ballistic missiles David’s Sling Israel $800 million – $1 billion 250 km Designed to intercept tactical ballistic threats Iron Dome Israel $100–150 million 70 km Short-range, low-cost, anti-rocket system Barak-8 India/Israel $24–70 million per unit 100 km Naval/land-based, modern radar-guided missile Aster-30 (SAMP/T...