আবু সায়েফ গেরিলা গোষ্ঠী কোন দেশে তৎপর?

∎Abu Sayyaf(আবু সায়েফ গেরিলা গোষ্ঠী):

Abu Sayyaf is an Islamist militant group based in and around Jolo and Basilan islands in the southwestern part of the Philippines, where for more than four decades, Moro groups have been engaged in an insurgency for an independent province in the country. The group is considered very violent, and was responsible for the Philippines' worst terrorist attack, the bombing of Superferry 14 in 2004, which killed 116 people.