The Philippines are a predominantly Roman Catholic nation. In fact, I've managed to hit both of the only Roman Catholic countries in all of Asia this fall (the other being East Timor).
Unlike East Timor, there is also a sizeable Muslim population. Some of them are part of a successionist movement in the southern region of Mindenao. Not having read much about this conflict I can only comment on the poorly named Moro Islamic Liberation Front, or MILF.
Yeah, you read that right: MILF.
Against my better judgement, I find it terribly difficult to take this group seriously.
Because really, a bunch of MILF's running amok in southern Philippines would be kind of awesome.