First sergeants and acting first sergeants from the 403rd Wing gather for their morning meeting March 8, 2015, at Keesler Air Force Base, Mississippi, during the March unit training assembly. The duties and responsibilities of first sergeants include advising and assisting unit commanders and other commissioned and senior noncommissioned officers on readiness topics to provide a mission-ready enlisted force for accomplishing the unit’s mission. (U.S. Air Force photo/Tech. Sgt. Ryan Labadens)