One of our bunkers. We called this design the "Hay Hole", because the design was mandated by Division Commander Major General John Hay. Although good to hide in because of the double overhead cover, the major blind spot to the front, and overlapping fields of fire made soldiers worry about being trapped and overrun if the perimeter was breached. The closed design played Hell with your eardrums if you had to fire a weapon from inside. A lot of soldiers stayed inside when there were incoming mortars or rockets, but fought from behind the bunker for better visibility. The sump in front of the firing port was supposed to keep grenades from being rolled into the bunker. If they got that close they could drop them through the back door.

The Division Commanders before and after MG Hay (Major General Depuy and Major General Keith Ware) both approved simpler bunker designs with open-front views, which required less time digging in. The merits of both designs can be argued, but we spent many nights without sleep building Hay Holes, only to tear them down and move on a few days later.