'All parties concerned had policy dilemmas over Cambodia's southeast, but none was sharper than the Commlinists' . On the one hand, they obviously needed the area — which included SvayRieng, Prey Veng, and Kompong Cham -- as a refuge and a source of supply. On the Other hand,, they used it as the main staging ground for Cambodian infiltrators. As elsewhere, the Viet Cong attempted to keep their involvement in the Khmer dissidence a secret. They were none too successful