Using a secured online communications network, Chief Warrant Officer 3 Thomas J. Socha, a supply and services multi-class technician with the 143d Sustainment Command (Expeditionary), gives a preliminary update regarding the status of his section June 22 in preparation for Command Post Exercise-Sustainment, a computer training exercise that uses scenario based events that better prepare a command staff to work as a cohesive unit. Many soldiers from the 143d ESC spent the days leading up to the exercise testing equipment, collecting data and gathering supplies (U.S. Army photo by Sgt. John L. Carkeet IV, 143d Sustainment Command (Expeditionary).