Airmen with the 99th Civil Engineering Squadron Fire Protection Flight extinguish a controlled fire during a training exercise Sept. 18, 2018, at Creech Air Force Base, Nev. Firefighters must complete two live-burn exercises annually in order to stay current with training requirements.
 

Airmen with the 99th Civil Engineering Squadron Fire Protection Flight, extinguish a controlled fire during a training exercise Sept. 18, 2018, at Creech Air Force Base, Nev. The firefighters completed each exercise in pairs, while being monitored by unit leadership to ensure their safety and that training objectives were met.
 

Airmen with the 99th Civil Engineering Squadron Fire Protection Flight, enter the live-burn training facility Sept. 18, 2018, at Creech Air Force Base, Nev.
 
Airmen with the 99th Civil Engineering Squadron Fire Protection Flight, prepare to enter the live-burn training facility Sept. 18, 2018, at Creech Air Force Base, Nev.