Sailors assigned to Coastal Riverine Squadron 3 (CRS-3) conduct a security presence patrol during exercise Ssang Yong 2016 at Pohang, South Korea, March 12. Ssang Yong is a series of joint and combined amphibious maritime training exercises conducted by U.S. Combined Forces Command (CFC) and Republic of Korea (ROK) component commands, which demonstrate the U.S. commitment to the ROK. (U.S. Navy Combat Camera photo by Mass Communication Specialist 1st Class Doug Harvey/Released)