Students in a Practical Hydraulics course at at the 88th Readiness Division-operated Draw Yard learned how to connect a quick disconnect coupler to a MF102H hydraulic circuit simulator to ensure that “hydraulic” fluid flowed through a valve on Fort McCoy, Wis., Jan. 8, 2023. (U.S. Army Reserve photo by Sgt. 1st Class Clinton Wood, 88th Readiness Division).