181218-N-YF329-030 ROTA, Spain (Dec. 18, 2018) Masters-at-arms assigned to Naval Station Rota, Spain, take a suspect into custody during a personal improvised explosive device exercise. The Naval Station Rota security department conducts these exercises to increase Sailor knowledge and reaction time. (U.S. Navy photo by Mass Communication Specialist 3rd Class Patrick D. Maher/Released)