171207-N-QM691-0911 AMAZON RIVER, Brazil (Dec. 7, 2017) Lt. Cmdr. Robert Lennon, left, and Lt. Cmdr. Thomas Barlow, center, both U.S. Navy doctors , work with 2nd Lt. Raissa Vieira Sanches, right, to perform an operation to drain an abscess for a young woman aboard NAsH Soares de Meirelles near the remote town of Beruri on the Amazon River in Brazil. Corporal Muller Anselmo, a Brazilian Navy nurse technician, holds the young woman’s hand. Barlow and Lennon are members of a team of five U.S. Navy doctors who are joining the Brazilian Navy on a month-long humanitarian mission up the Amazon River. Together, the U.S. and Brazilian Sailors are delivering healthcare to some of the most isolated people in the world. (U.S. Navy photo by Mass Communication Specialist 2nd Class Andrew Brame/Released)