"Donald Cook's presence in the Black Sea is meant to reassure and at the same time demonstrate our commitment to work closely with NATO allies in order to enhance maritime security," Cmdr. Charles Hampton, the ship's commanding officer, was quoted as saying in the statement Thursday.
Following Crimea's reunification with Russia, NATO sent additional warships to the Black Sea. The missile destroyer USS Donald Cook, the USS Truxton, the USS Taylor and several other NATO warships were deployed to the Black Sea as the Ukrainian crisis escalated.
Moscow has repeatedly denied its involvement in Ukraine's internal affairs and criticized the bloc's growing military presence near Russia's borders, with President Vladimir Putin saying that the Ukrainian crisis was used by NATO as a pretext for "resuscitating" itself.