Onboard the US Navy (USN) Military Sealift Command (MSC), Hospital Ship, USNS MERCY (T-AH 19), US Army (USA) Colonel (COL) Tom Crabtree, a Medical Doctor (MD) and a Operation Smile volunteer, perform cleft lip surgery on a young Bengali child. The MERCY is anchored off the coast of Chittagong, Bangladesh, while on a scheduled five-month deployment to deliver aid and humanitarian assistance to South and Southeast Asia and the Pacific Islands