Marines Fire Their Biggest Gun

U.S. Army soldiers with Charlie Battery 2150 Field Artillery demonstrate the M-777 Howitzer Cannon in support of the Bold Quest 20.2 Exercise on Sat. Oct. 31, 2020. Bold Quest tests and assesses the functional and technical interoperability of ground, sea and air-based intelligence, surveillance and reconnaissance (ISR), and joint fires systems. (U.S. Air Force video by Tech. Sgt. Robert Harnden)