A U.S. Navy sailor prepares to engage in a mock gun battle during an active shooter drill at Yokosuka Naval Base, Japan, on Nov. 17, 2022. (Akifumi Ishikawa/Stars and Stripes)
A U.S. Navy sailor apprehends a Kansas City Navy reservist acting as an active shooter during a drill at Yokosuka Naval Base, Japan, on Nov. 17, 2022. (Akifumi Ishikawa/Stars and Strip)
A U.S. Navy sailor tends to a man acting as a victim during a mass casualty drill at Yokosuka Naval Base, Japan, on Nov. 17, 2022. (Akifumi Ishikawa/Stars and Stripes)
