Howitzer Loading Marines load an M-777 towed 155 mm howitzer into the cargo hold of a U.S. Air Force C-17 Globemaster III at March Air Reserve Base, Calif., April 21, 2022. The howitzers are part of the United States' efforts, alongside allies and partners, to identify and provide Ukraine with additional supplies in its fight against the Russian invasion. SHARE IMAGE: Download Image: Full Size (1.97 MB) Tags: marine corps Photo By: Marine Corps Cpl. Austin Fraley VIRIN: 220421-M-ME368-0103.JPG Photo Gallery