Meanwhile in Marawi, government forces still have not been able to recapture the city, after nearly 9 days of battle.
Despite the use of heavy arms -the city has even been bombarded from the air-, the black IS flag still stands.
Amongst the insurgents aren't just Philippino insurgents, Chechens and Arabs have also been identified partaking in the battle.
Civilians have been exectued, and christians are reportedly being used as human shields.
Tens of thousands of inhabitants have fled the city.
Terrorism expert at S. Rajaratnam School of International Studies in Singapore, Rohan Gunaratna says "As IS is losing more and more territory in Syria and Iraq, the organisation is spreading it's wings. One of the territories they see opportunities is south-east Asia, with the Philippines as center of gravity. Over the past few years we have seen a trend of small militant groups joining forces under the flag of IS. One of the very first people to swear allegiance to IS, when al Bagdadi proclaimed the foundation of the Caliphate, was Isnilon Hapilon (the IS leader whose attempted arrest triggered the current siege of Marawi). Last year he was appointed emir of south east Asia, by IS. Next to that, he has really close ties to Abu Sayyaf. He used to be a very important commander for that organisation. While formally, Abu Sayyaf has not yet sworn allegiance to IS, in practice, when Abu Sayyaf fighters get home, they turn on their telephones and watch IS videos".
In recent editions of Rumiya (a monthly magazine by IS published in multiple languages), actions of IS-fighters against the 'Philippino crusader army' were highlighted.
Last summer, a video was posted of heavily armed men on Mindanao. They formed a cricle, joined hands, and proclaimed allegiance to IS. A bit later, a Malaysian fighter calls upon the viewers to come to the Philippines, if they are unable to get to the Middle East. He then joins with two other fighters and decapitates 3 christians.
According to Gunaratna, the Phillipines have always been a hotspot for extremist. They came there to train mostly, but it seems that they have now really chosen Mindanao as the epicentre of battle in south east Asia. Their goal is to proclaim wilaya on the Philippines, making it a province of the Caliphate, as has happened in Libya and in Saudi Arabia. Achieving that would be a major victory for extremism
"At this point IS already controls some parts of Mindanao. The army needs to strike back fast. If IS can further expand it's territory, it will become ever harder to dismantle", Gunaratna continues, "and the Philippines cannot do that alone. But that is a sensitive issue. The West will not be very eager to assist Duterte, being horrified by the way he wages war on drugs."
http://www.volkskrant.nl/buitenland/nu-is-terrein-verliest-in-syrie-en-irak-richt-het-zijn-vizier-op-zuidoost-azie~a4498683/