The coalition military mission against Islamic State in Iraq concluded on September 30, 2026, according to Britain's Ministry of Defence. Akashvani separately reported US President Donald Trump's announcement that the final American contingent was leaving and his description of the withdrawal as a victory.
The British statement confirms the mission's conclusion and the departure of coalition forces, including British personnel. It also says the United Kingdom intends to continue a bilateral defence partnership with Iraq. That combination is central to understanding the announcement: ending a particular multinational mission and ending all military cooperation are different decisions.
Operation Inherent Resolve was established in 2014 to assist partner forces against Islamic State. The British account describes a transition towards Iraqi-led arrangements after years of training and operational support. It identifies counter-terrorism cooperation, military education, capability development and defence-industry collaboration as areas for the next phase.
These proposed activities are not interchangeable with the coalition deployment that has ended. A training relationship concerns how forces build and maintain skills; an operational mission concerns the tasks a deployed force is authorised to carry out. The stated transition changes the framework without requiring Iraq to abandon relationships with its former coalition partners.
Trump described the withdrawal as a victory. Britain's statement nevertheless retained counter-terrorism cooperation and opposition to Islamic State propaganda among its priorities for the relationship with Iraq.
