160511-N-BB534-665 SAN DIEGO (May 11, 2016) Crew members manning the rails of USNS Mercy (T-AH 19) wave as they pass USS Theodore Roosevelt (CVN 71). Mercy is underway for Pacific Partnership, in its 11th year, as the largest annual multilateral humanitarian assistance and disaster relief preparedness mission conducted in the Indo-Asia-Pacific region. More than 600 military and civilian personnel are embarked from the U.S., Australia, New Zealand, Canada, and the United Kingdom. (U.S. Navy photo by Mass Communication Specialist 1st class Elizabeth Merriam/Released)