"A number of countries were hesitant to acknowledge the PRC, given its large size and potential wealth, as a genuine Third World state. Its list of irredentist territorial grievances added to these misgivings, as did rhetoric advocating world revolution that cast doubt on how non-aligned the PRC actually was. Several countries accused Beijing of meddling in their internal affairs---such as supporting a communist movement in Burma and training anti-government guerrillas in the Cameroons---which were strictly forbidden by the Pancha Sheela"

--- Encroaching On the Middle Kingdom? China’s View of Its Place in the World, June Teufel Dreyer

(Emphases mine)