Retired Maj. Gen. Jeffrey N. Colt (right), senior mentor for the Mission Command Training Program, makes a comment on a draft chapter of Field Manual 3-0, “Operations,” May 18, 2021, Fort Leavenworth, Kan. The Combined Arms Doctrine Directorate is hosting a week-long review of the draft publication with six retired senior leaders, including one former Combined Arms Center Commanding General, participating in the process. The revised FM 3-0 will go through several more iterations before its final publication in mid-2022. (U.S. Army photo by Randi Stenson, MCCoE Public Affairs)