For the past 30 years, Moro rebels have been waging a mostly low-level guerrilla war to set up a separate state on Mindanao and some other southern islands of the mainly Roman Catholic Philippine archipelago. A smaller Muslim guerrilla group, the Abu Sayyaf, holds more than two dozen hostages in the southern island of Basilan, including at least two Americans. The military said it believes a third American is dead, as the rebels claim to have beheaded him.
Tiglao said the truce accord would allow MILF forces to occupy a number of small camps in central Mindanao, and there would be "no military offensives on our part and on their part." Last year, MILF forces were driven from their major training bases including their main base of Camp Abubakar in a bloody military campaign conducted by Arroyo's predecessor Joseph Estrada. Estrada was deposed last January. "We have occupied these camps, so we are maintaining our forces there," Tiglao said. But the ceasefire would allow for the return of several hundred thousand mainly Muslim non-combatants who were displaced by last year's fighting.