The Russians do not appear to like the US Navy operating ships in the Baltic Sea. On Aprill 11, two unarmed Russian SU24 fighter jets made low attitude passes at the US Navy destroyer USS Donald Cook. Then, on April 12, two Russian KA27 Helix helicopters flew several circles around the Donald Cook, apparently taking photos. Later, two unarmed SU24 jets made approximately a dozen very close, low-level passes of the ship in what the official described as “Simulated Attack Profile.” When the incidents took place the Donald Cook was roughly 70 nautical miles from the Russain port of Kaliningrad in international waters in the Baltic Sea, having sailed from Gdynia, Poland.
The US Navy posted videos of the Russian planes buzzing the Cook on Youtube.