180209-N-XX082-005 YOKOSUKA, Japan (Feb. 9, 2018) Cryptologic Technician (Technical) 1st Class Braxton Riley, assigned to Information Warfare Training Site (IWTS) Yokosuka, performs a built-in test procedure on the Joint Tactical Terminal Maritime (JTT-M) during a system operations verification test. The JTT-M was installed as a supplement to the current JTT-M training courses as part of the Center for Information Warfare Training’s electronic warfare training modernization effort. IWTS Yokosuka’s instructors received seven days of hands-on training and guidance from Space and Naval Warfare Systems Command (SPAWAR) personnel. (U.S. Navy photo by Cryptologic Technician (Technical) 1st Class Justin Castillo/Released)