 Complete the following phrase:  Christian East Beirut was ringed by heavily fortified Palestinian camps from which kidnappings and sniping against Lebanese civilians became a daily routine. Christian East Beirut became besieged by the PLO camps, with severe shortages of food and fuel. This unbearable situation was remedied by the Kataeb Regulatory Forces most notably the BG Squad that was led by Bachir and their allied Christian militias as they besieged the Palestinian camps embedded in Christian East Beirut one at a time and brought them down. The first was on 18 January 1976 when the heavily fortified 