Members of the 2nd Security Forces Squadron push a High-Mobility Multipurpose Wheeled Vehicle, better known as a Humvee, during the mental and physical challenge security forces competition of Global Strike Challenge on Camp Minden, La., Nov. 7. The purpose of Global Strike Challenge is to build a culture of excellence and esprit de corps as the command recognizes the 'best of the best.' (U.S. Air Force photo/Senior Airman Chad Warren)