FLAME FIGHTERS Air National Guard firefighters work to extinguish a plane fire during a training exercise at Volk Field, Wis., July 17, 2013. The training was part of Patriot Exercise 2013, a National Guard domestic response exercise that included both National Guard and Reserve units from 26 states and local civilian agencies. SHARE IMAGE: Download Image: Full Size (0.08 MB) Photo By: VIRIN: 104113-I-MTI13-525.jpg Photo Gallery