Spc. John Williams, a U.S. Army Reserve mechanic with the 346th Military Police Company (Combat Support) poses for a portrait in front of an M117 Armored Security Vehicle (ASV) engine during a maintenance chourse hosted by the 99th Readiness Division in Schenectady, New York, March 14, 2018. This is the first maintenance course in the U.S. Army Reserve designed specifically for the ASV, which has hydraulic components and maintenance procedures that are unlike most other Army vehicles. The ASV is designed to resist the impact of roadside bombs while operating in urban environments. Its mounting systems allow the ASV to hold an M2 .50-caliber machine gun, a MK-19 grenade launcher and an M249 Squad Automatic Weapon at the same time. (U.S. Army Reserve photo by Master Sgt. Michel Sauret)