Russia’s act of aggression against Ukrainian ships in the Black Sea on Sunday should not be dismissed as an isolated incident in its four-and-a-half year old war against Ukraine. This pre-meditated attack is part of a broader effort by Moscow to take full control of the Kerch Strait – a strategic chokepoint that connects Russia to Crimea and separates the Black and Azov Seas. Control over the Kerch Strait gives the Russian navy complete dominance over the Sea of Azov, whose only direct outlet to international waters is through the strait.

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