Participants of Patrol Rifle Operator School clear firearms after a weapon transition exercise at the Oklahoma County Sheriff's Office Training Center in Oklahoma City, May 26, 2016. Four Will Rogers Air National Guard Base Airmen joined local policing agencies for weapons training, May 24-26. The Oklahoma Country Sheriff's Office led the training to enhance communication and compatibility between various Oklahoma law enforcement groups. (U.S. Air National Guard photo by Senior Airman Tyler Woodward)