160513-N-SX983-252 PACIFIC OCEAN (May 13, 2016) – Hospital Corpsman 2nd class Rhonda Cataline, native of Shelbyville, Illinois, shows Hospitalman Thomas Lacy, native of Parker, Colorado, how to check a casualty’s breathing during a Tactical Combat Casualty Care course aboard USNS Mercy (T-AH 19). Mercy is currently deployed in support of Pacific Partnership; this year's mission is designed to emphasize multilateral cooperation and building mutual trust in the Indo-Asia-Pacific region. Medical, engineering and various other personnel embarked aboard Mercy will work side-by-side with host and partner nation counterparts, exchanging ideas, building best practices and relationships to ensure preparedness should disaster strike. (U.S. Navy photo by Mass Communication Specialist 3nd class Lindsey E. Skelton/Released)