Artillery Accident of 1960: The deadliest event in the history of the Grafenwoehr Training Area By Johanna Pschierer, USAG Bavaria Public Affairs Germany. Grafenwoehr Training Area. September 2, 1960. Around 0900 hrs. Cloudy, as usual. A platoon of U.S. Army Soldiers are pitching a tent. Some are even on each other’s shoulders (Soldiers don’t lug …