Combined Arms Doctrine Directorate Operational-Level Doctrine Division Chief Lt. Col. Matt Farmer briefs Brig. Gen. Jiho Song (center), Republic of Korea Army Battle Command Training Program Commander, during a visit to Fort Leavenworth Oct. 17. The CADD team provided a doctrine overview brief and addressed specific topics of interest with the delegation. (U.S. Army photo by Maj. Brandon Boatwright, CADD)