160930-N-SX983-106 SAN DIEGO (Sept. 30, 2016) Service members aboard hospital ship USNS Mercy (T-AH 19) man the rails as Mercy returns to her homeport at Naval Base San Diego after returning from Pacific Partnership 2016. Pacific Partnership deployed in May, visiting six ports, during which civilian and military personnel from 14 partner nations worked together, exchanging knowledge and best practices in order to improve collective disaster response preparedness in the Indo-Asia-Pacific region. (U.S. Navy photo by Petty Officer 2nd Class Lindsey E. Skelton/Released)