150730-N-XQ474-386 ROSEAU, DOMINICA (July 30, 2015) Cmdr. Thomas Chung, from Los Angeles, Calif., a plastic surgeon assigned to Walter Reed National Military Medical Center Bethesda, Md., and medical students from Ross University School of Medicine perform surgery on a patient in an operating room aboard the Military Sealift Command hospital ship USNS Comfort (T-AH 20) during Continuing Promise 2015. Continuing Promise is a U.S. Southern Command-sponsored and U.S. Naval Forces Southern Command/U.S. 4th Fleet-conducted deployment to conduct civil-military operations including humanitarian-civil assistance, subject matter expert exchanges, medical, dental, veterinary and engineering support and disaster response to partner nations and to show U.S. support and commitment to Central and South America and the Caribbean. (U.S. Navy photo by Mass Communication Specialist 3rd Class Andrew Schneider/Released)