190523-N-HP061-082 NAPLES, Italy (May 23, 2019) Master-at-Arms 3rd Class Calantha Obrien, assigned to the Naval Support Activity (NSA) Naples security department, responds to a simulated active shooter during a drill at the NSA Naples Middle High School onboard Support Site in Naples, Italy, May 23, 2019. NSA Naples is an operational ashore base that enables U.S., allied, and partner nation forces to be where they are needed, when they are needed to ensure security and stability in Europe, Africa, and Southwest Asia. (U.S. Navy photo by Mass Communication Specialist 2nd Class Donavan K. Patubo/Released)