 bunker, which is approximately 25 feet tall. And actually, it was a tunnel down inside of it. So if there was gunfire support coming in from the Navy shooting into there, because they knew it was, they would go down in that tunnel on the way out to the liquid fire, and then they'd come back out. Mike, let's take a quick break in your story. We'll be right back with much more with Mike Thornton, recipient of the Medal of Honor of Vietnam on Veterans Chronicles.