Answer:
In September 1972 Marcos declared martial law, claiming that it was the last defense against the rising disorder caused by increasingly violent student demonstrations, the alleged threats of communist insurgency by the new Communist Party of the Philippines (CPP), and the Muslim separatist movement of the Moro National Liberation Front (MNLF). One of his first actions was to arrest opposition politicians in Congress and the Constitutional Convention. Initial public reaction to martial law was mostly favourable except in Muslim areas of the south, where a separatist rebellion, led by the MNLF, broke out in 1973.
