160505-N-ZZ999-003 KWAJALEIN, Marshall Islands (May 5, 2016) Builder 3rd Class Marissa Olson, assigned to Naval Mobile Construction Battalion 133 Construction Civic Action Detail Marshall Islands explains a mathematics problem to Marshallese high school students. Olson travels to Ebeye Island every week to help local students improve their English and mathematics skills. (U.S. Navy photo by Ensign Alex Liu)