Player Embed Code: Download Embed Share JCOC, Closing the final yards Office of the Secretary of Defense Public Affairs Nov. 4, 2022 | 0:51 Closing the final yards.The 4th Infantry Division guided the 93rd Joint Civilian Orientation Conference participants through the Mabry Mile obstacle course, a combative demonstration, live-fire event, a medical evacuation hoist and a demolition demonstration at U.S. Army Fort Carson, Colorado.The JCOC is the Department of Defense’s oldest and most prestigious public liaison program that was established in 1948.