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S-400
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S-400

Russia long-range SAM system whose battlefield destruction shapes Ukraine war air control.

Last refreshed: 30 March 2026 · Appears in 1 active topic

Key Question

Can Russia's front-line air defence survive systematic Ukrainian strikes on its S-400 network?

Latest on S-400

Common Questions
What is the S-400?
The S-400 Triumf is Russia's premier long-range surface-to-air missile system, built by Almaz-Antey and in service since 2007. It can engage targets at ranges up to 400 km and altitudes up to 30 km, tracking up to 300 targets simultaneously.Source: Almaz-Antey
How many S-400 systems has Ukraine destroyed?
Between 1 and 15 March 2026 alone, Ukrainian forces struck over 20 Russian air defence targets including S-400 launchers across Crimea, Kherson, Luhansk, and Zaporizhzhia oblasts, alongside eight radar types.Source: Ukrainian MoD
Why did Ukraine strike the Granit facility in Sevastopol?
Granit, part of Almaz-Antey, is the repair base for S-400 and S-300 systems. Destroying it on 19 March 2026 was designed to sever the logistics chain that restores damaged air defence launchers, compounding battlefield losses.Source: Ukrainian MoD
Which countries bought the S-400?
Turkey, China, and India are the main export customers. Turkey's 2019 purchase triggered US CAATSA sanctions and its removal from the F-35 programme. India began receiving deliveries in 2021 under ongoing US pressure.Source: CAATSA / public record
How does the S-400 compare to the Patriot missile system?
The S-400 has a longer stated engagement range (400 km vs Patriot's 160 km) but has suffered significant attrition in Ukraine. The Patriot has performed well in Ukrainian service; the S-400's inability to be rapidly replenished has emerged as a key weakness.Source: open-source analysis

Background

The S-400 Triumf is Russia's premier long-range surface-to-air missile system, manufactured by Almaz-Antey and entering service in 2007. It engages aircraft, Cruise Missiles, Ballistic Missiles, and drones at ranges up to 400 km, simultaneously tracking up to 300 targets, and forms the backbone of Russia's integrated air defence network. It has been exported to Turkey, China, and India, creating diplomatic friction with NATO.

Ukraine has made systematic destruction of S-400 batteries a strategic priority. Between 1 and 15 March 2026, Ukrainian forces struck over 20 Russian air defence targets across Crimea, Kherson, Luhansk, and Zaporizhzhia oblasts, including S-400 launchers and associated radars . On 19 March, Ukrainian drones struck the Granit repair facility in Sevastopol, part of Almaz-Antey, which services S-400 and S-300 systems, severing the logistics chain that restores destroyed batteries .

The S-400's export record creates a geopolitical fault line: Turkey's purchase triggered US sanctions under CAATSA and its suspension from the F-35 programme, while India's acquisition remains a live diplomatic pressure point. Each battery lost in Ukraine not only degrades front-line air cover but erodes the system's commercial credibility at a moment when Russia cannot replace production losses at scale.

Source Material