200520-N-CA060-0020 SASEBO, Japan (May 20, 2020) Master-at-Arms 2nd Class Anthony Revak, assigned to Commander, Fleet Activities Sasebo (CFAS) Harbor Security Division, operates a harbor security boat during a patrol onboard CFAS, May 20, 2020. Even underway, HSB crews wear masks as a preventive measures against COVID-19. (U.S. Navy photo by Mass Communication Specialist Seaman Apprentice Jasmine Ikusebiala/Released)