U.S. Marines with Fox Battery, 2nd Battalion, 11th Marine Regiment, 1st Marine Division, fire an M777 howitzer during Summer Fire Exercise 19 at 62 Area on Marine Corps Base Camp Pendleton, California, July 23, 2019. The Marines are conducting Summer FIREX, a live-fire regimental-level exercise, from July 22 to Aug. 1. The exercise is designed to bring the entire regiment together and maximize the training areas available on Camp Pendleton to enhance their ability to conduct real-world operations. - U.S. Marines with Fox Battery, 2nd Battalion, 11th Marine Regiment, 1st Marine Division, fire an M777 howitzer during Summer Fire Exercise 19 at 62 Area on Marine Corps Base Camp Pendleton, California, July 23, 2019. The Marines are conducting Summer FIREX, a live-fire regimental-level exercise, from July 22 to Aug. 1. The exercise is designed to bring the entire regiment together and maximize the training areas available on Camp Pendleton to enhance their ability to conduct real-world operations.