Russia's Scary S-400 Air Defense System Is Now Protecting the Skies Above Crimea

Russia is bolstering its anti-access/area-denial (A2/AD) capabilities in Crimea with the addition of the potent S-400 Triumf air and missile defense system. The addition of the S-400—which can be armed with the 250-mile range 40N6—would afford Moscow the ability not only to keep the peninsula safe from attack, but also threaten airspace deep inside Ukraine should the Kremlin choose to do so.

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