The U.S. Navy guided-missile destroyer USS "Donald Cook" (DDG-75) conducts flight quarters with a Royal Navy Westland "Sea Lynx" HMA8 helicopter (s/n ZD566) in the Mediterranean Sea. "Donald Cook", forward-deployed to Rota, Spain, was conducting naval operations in the U.S. 6th Fleet area of responsibility in support of U.S. national security interests in Europe.