Airmen assigned to the 380th Expeditionary Security Forces Squadron fire their M4 Carbine weapons at Al Dhafra Air Base, United Arab Emirates, March 8, 2019. The 380th ESFS members used the method of “zeroing” their weapons – firing live rounds to ensure the accuracy as opposed to the method of bore sighting – a less reliable technique. (U.S. Air Force photo by Senior Airman Mya M. Crosby)