Koki Onodera, a student attending Oshima Elementary School, thanks U.S. Marines and his host family during a pool party at Camp Foster, Japan, Aug. 8, 2011. The pool party was held as part of the Home-Stay Program, a four-day cultural exchange program for children from Oshima district, Kesennuma and Miyagi prefecture. Those areas were heavily damaged in the Tohoku earthquake March 11.