2nd Air Force has new command chief Published Jan. 18, 2012 By Staff Sgt. Kimberly Moore 81st Training Wing Public Affairs KEESLER AIR FORCE BASE, Miss. -- Chief Master Sgt. Oscar "Deno" Mackin is 2nd Air Force's new command chief. Mackin comes to Keesler via the 51st Fighter Wing at Osan Air Base, Republic of Korea. He grew up in Springfield, Mo., and entered the Air Force in August 1985. Throughout his career the chief has served in various security forces positions and as a career assistance adviser. Mackin has deployed in support of Operations Desert Shield, Desert Storm, Southern Watch, Allied Force, Joint Forge, Enduring Freedom and Iraqi Freedom. Some of the chief's awards and decorations include the Bronze Star, Meritorious Service Medal with six oak leaf clusters, Air Force Commendation Medal with seven oak leaf clusters and Air Force Achievement Medal with three oak leaf clusters. While serving as the 2nd Air Force command chief, Mackin is the senior enlisted leader responsible to the commander, Maj. Gen. Leonard Patrick, on matters concerning the welfare, effective utilization, professional development and readiness of the enlisted members of Second Air Force. Second Air Force provides training in 277 specialties through 2,794 courses and graduates 180,000 Airmen, Soldiers, Sailors, Marines and foreign students annually.