Command Sgt. Maj. Nelson Callahan, Joint Task Force-Bravo Command Sgt. Maj., carries a log around the track at Soto Cano Air Base, Honduras, June 03, 2015. During his year at Soto Cano, CSM Callahan has used his famous “Sgt. Maj. PT” sessions to strengthen JTF-B physically and as a team (U.S. Air Force photo by Capt. Christopher Love).