On April 23, 1966, the 3rd Platoon of Company C departed Cu Chi base camp at 0720 hours for a mounted patrol into the Filhol. At 1045 hours they reported that 1 man had been killed by sniper fire near XT 696196. At 1600 hours the platoon returned to Cu Chi Base Camp with the one Bobcat KIA. During the day a sergeant from Company B was conducting a class on the use of the Claymore anti-personnel mine in the battalion motor pool. The group was inside an APC with the rear ramp in the down position. One of the B Company mechanics said he had just walked past the track when there was an explosion. Somehow the claymore had detonated. Two men were killed outright and several were wounded. The mechanic related that there were putting people on jeeps and ¾ ton trucks and rushing them to the hospital area. “It was a bloody mess,” he related.