ocr: concentrated in the hands of - the Phalange party, its Lebanese Forces militia and the corrupt Gemayel family. But the IDF withdrawal also unleashed a vicious civil war between Lebanon's oldest adversaries, the Maronites and the Druze. Andin - the South, Muslims in Sidon rebelled against Phalangist authority and took up arms against President Amin Gemayel. The rebellion signalled the death of the multinational peace-keeping force that had been despatched to Lebanon after the Sabra and Chatila massacre. The American Marines, the forces key contingent, secured the low ground, barricaded themselv ...