Reserve Marines with 2/24 Battalion, 23rd Marine Regiment, 4th Marine Division, Marine Forces Reserve, and 4th Air Naval Gunfire Liaison Company, Force Headquarters Group, MFR, call in fire support from pilots manning the A-10 Thunderbolt II, a low-altitude close air support aircraft, while conducting night operations during a fire support coordination exercise in Camp Atterbury, Ind., April 15, 2016. The Reserve Marines coordinated with both the U.S. Army and U.S. Air Force to conduct combined arms training during the exercise.