The US-led coalition fighting the Islamic State group has formally concluded its mission in Iraq and Syria on Wednesday, marking the end of a nine-year operation. Deployed in 2014, the coalition’s primary objective was to defeat ISIS, a goal it has largely achieved, though concerns about the group’s resurgence remain. The announcement follows increasing pressure from the Iraqi government for foreign troops to leave the country. Iran’s Islamic Revolutionary Guard Corps has lauded the US withdrawal from Iraq as a significant “historic victory.” While the coalition’s combat mission is over, some troops will remain in a non-combat advisory role at the invitation of the governments of Iraq and Syria. The end of the mission signals a shifting dynamic in the region and a potential re-evaluation of security strategies.