February 1, 2017 - U.S. Navy Master-at-Arms 2nd Class Nathan Bratton maintains lookout as U.S. Navy Master-at-Arms 2nd Class Tyler Allhouse restrains U.S. Navy Chief Master-at-Arms Ryan Lyhodges during an active shooter drill on Naval Station Everett. The drill was part of Solid Curtain-Citadel Shield, an annual exercise using realistic scenarios to ensure Navy Security Forces maintain a high level of readiness and are capable of responding to dynamic threats. (U.S. Navy photo by Mass Communication Specialist 2nd Class Alex Van’tLeven)