Artillerymen from the 10th Mountain Division operate their M1A1 75mm pack howitzer. These compact guns were the main heavy support within the 10th, and could be disassembled for transport by mule. (Laemlein), pin by Paolo Marzioli
Photo of the First Marine Division Guadalcanal, August 1942 - A 75mm pack howitzer section of the 11th Marines occupies a former Japanese emplacement in the Lunga perimeter .http://www.ww2gyrene.org/1stmardiv_photos.htm | DEFENSE DEPT PHOTO (MARINE CORPS) 50515
US Marine artillery crew on Guadalcanal operating a 75mm pack howizter. The jungle environment created unique problems for observers because of the tree canopy. The climate was also corrosive to ammunition.