The seizure of Marawi city by Daesh-linked militants is a game-changer for Southeast Asia, and presents a threat to all countries of the region.
Limiting the movement of money, technology, recruits and planning support to extremist groups in the southern Philippines will be crucial to ensure Daesh-aligned groups do not gain a further foothold, and increase the security threat to other regional states.
Daesh supporters escaping from Iraq and Syria could take on influential positions within Southeast Asia extremist groups, although numbers are likely to be small.
This is a regional problem, and closer regional cooperation on counter-terrorism will be required to reduce the threat that Marawi presents.
Whatever support Australia provides must be informed by regional sensibilities and calibrated to the needs of Manila and residents of the southern Philippines.
Australia should seek to refocus and increase military education and training collaboration with the Armed Forces of the Philippines, with a focus on urban operations, civil-military relations and transition to peace.
Australia should continue to expand regional counter-terrorism cooperation, seeking to prevent the spread of emboldened Islamist terrorism beyond the southern Philippines and to limit the damage there.
Australia should focus its efforts in areas where it has distinct capabilities — such as on illicit financial transfers and the security of the maritime domain.