You can see the ravine in the center of the picture. This ravine went for several miles and the VC used it as a means of getting close to the Base Camp for their attacks. On this day they spotted some VC and opened up with the Dusters. You can see all the bunkers in the picture. When they expected an attack they would put a tank or APC in between the bunkers as well as Dusters and Quad 50's. When they opened up at night it was totally awesome. On several occasions they would launch gunships and work the perimeter with rockets and mini guns. A few times they called in Puff the Magic Dragon (C-47 Gunship) when the mini guns fired all you could see was a solid red line of tracers (tracers were every 5th round). They had a real unique sound.