150525-N-ZZ999-006 WATERS TO THE SOUTH OF THE KOREAN PENINSULA (May 25, 2015) The Arleigh Burke-class guided-missile destroyer USS Lassen (DDG 82), front, conducts a trilateral naval exercise with the Turkish frigate FTCD Gediz (F-495) and Republic of Korea Navy (ROKN) destroyers Seoae Ryu Seong-ryong (DDG 993) and Gang Gam-chan (DDH 979) in support of theater security operations. Lassen is on routine patrol in the U.S. 7th Fleet area of operations in support of security and stability in the Indo-Asia-Pacific region. (U.S. Navy photo by Naval Air Crewman (Helicopter) 2nd Class Evan Kenny/Released)