150321-N-VC236-062 LISBON, Portugal - Sailors secure mooring lines aboard the Arleigh Burke-class guided-missile destroyer USS Farragut as the ship enters port in Lisbon, Portugal March 21, 2015. Farragut, homeported in Mayport, Florida, is conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe.