Staff Sgt. Aaron Bonner, 28th Force Support Squadron Airman Leadership School instructor, teaches his class about punishments and reinforcements at Ellsworth Air Force Base, S.D., Feb. 25, 2016. During their time at ALS, Airmen learn useful leadership and life skills to help them become effective supervisors. (U.S. Air Force photo by Airman 1st Class Denise M. Nevins/Released)