U.S. Marines with November Battery, 5th Battalion, 14th Marine Regiment, 4th Marine Division fire M777 Howitzers during Integrated Training Exercise 4-19 at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif USA

ITX 4-19 is a live-fire and maneuver combined arms exercise designed to train battalion and squadron-sized units in tactics, techniques, and procedures required to provide a sustainable and ready operational reserve for employment across the full spectrum of crisis and global engagement.

Credit to (U.S. Marine Corps video by Lance Cpl. Faeth Webb)