When undercover Russian troops first invaded Crimea last year, the Ukrainian government and military were wholly unprepared for the new brand of hybrid warfare they launched, Vitaly Naida, director of information security counterintelligence for Ukraine's Security Service, told Politiko.
Russia's War Against Ukraine
Politico: We weren’t ready – Ukraine’s intel chief
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Russian soldiers storm a Ukrainian military air base in the small city of Belbek near the Crimean city of Sevastopol on March 22.