Lightweight 155 mm Howitzer System (LW155) - USAASC
152 mm towed gun-howitzer M1955 (D-20) - Wikipedia
Army's New Huge Barrel Packing 155mm Howitzer Doubles Range To 40 Miles In Tests
Toxso Model, M114A1 155mm Howitzer, Kit No. 1403
Production of the German SMArt 155 mm top attack artillery projectile will start in the future to replenish German Army stocks. This carries two sub-munitions. - European Security & Defence
M198 howitzer - Wikipedia
Researchers looking to extend howitzer's range to more than 40 miles | Stars and Stripes