Herbert Green (center), maintenance instructor for the 99th Readiness Division, directs U.S. Army Reserve mechanics from the 200th Military Police Command how the engine pack will go back into an M1117 Armored Security Vehicle (ASV) during a maintenance course hosted 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)