170429-N-TB410-1202 JUBAIL, Saudi Arabia (April 29, 2017) Cryptologic Technician Seaman Recruit Lawrence Bosworth, left, and Cryptologic Technician 3rd Class Mark J. Dimalanta, both assigned to the Arleigh Burke-class guided-missile destroyer USS Mahan (DDG 72), tighten mooring lines as the ship moors pierside in Jubail, Saudi Arabia, for Exercise Nautical Union 17. The bilateral multi-dimensional exercise between the U.S. and Saudi Arabia promotes interoperability, cross-training and maritime security operations designed to reassure allies and partners, preserve the freedom of navigation and the free flow of commerce in the region. (U.S. Navy photo by Mass Communication Specialist 1st Class Joshua Bryce Bruns/Released)