One of the "gun bunkers". Our battery had four 155 mm "long tom" guns. They were considered heavy artillery. Each gun section had 10 to 12 men. The guns were dug in on the north slope of our valley. Each section had a bunker dug in beside the gun where the men slept and were protected when not firing the gun.
Our FDC (fire direction control) section was connected to the guns and the forward observer by telephone. We could use an air observer, by radio, if necessary. It was our job to plot the target and send the aiming commands to the guns.
Sometimes, a south korean soldier would cut our phone line to the FO. When this happened we had air observers for back-up. Our wire section had to repair the break. The line was about 3 to 4 miles long. It could take a wireman all day to find the problem. The wires were not on poles but just laying out in the open. A korean soldier would come across our line, tap into and listen to find out who it belonged to. If it wasn't theirs he may cut it if he needed the wire.