Key takeaways
- Britain and France will jointly lead Exercise Koalicja in Poland, 9 to 22 November, with about 2,800 personnel from 11 nations.
- The exercise rehearses how a multinational force would deploy to Ukraine, but only after fighting stops and at Kyiv's request.
- No ceasefire exists, and officials have not specified the force's final size, make-up or rules of engagement.
Britain and France said on 3 November that they will jointly lead Exercise Koalicja, a military rehearsal in Poland from 9 to 22 November for the Multinational Force-Ukraine (MNF-U). The UK Ministry of Defence (MoD) says about 2,800 personnel from 11 nations, including Belgium, Estonia, France, Germany, Lithuania, the Netherlands, Poland, Spain, Sweden, Türkiye and the UK, will practise how to move, protect and supply a force. Air and land operations are centred on Nowa Dęba, in southeastern Poland, about 100 km (62 miles) west of the Ukrainian border. No troops will enter Ukraine.
Defence Secretary Wes Streeting said in the MoD statement that the exercise "shows the UK is stepping up, alongside France and our allies, to prepare for the day peace comes to Ukraine." He added: "This isn't a hypothetical plan, it's a real force, ready to help Ukraine once the fighting stops." The MoD calls MNF-U the military arm of the Coalition of the Willing, a group of nations that have pledged military, economic and diplomatic support to Ukraine. According to the MoD, it would deploy only after fighting has stopped and at the request of Kyiv.
What the exercise tests
France supplies the largest contingent, 1,100 troops, AFP reported. The UK sends 300 personnel from the Army's 7 Brigade, known as the Desert Rats, who will rehearse logistical movements. RAF Typhoons and a Voyager refuelling aircraft will fly overhead, simulating how jets would reassure commercial air traffic once Ukraine's skies reopen. Turkey will stand up the maritime element in Istanbul, testing mine-clearance arrangements so commercial shipping can return to Ukrainian ports, the MoD says.
AFP reports that only light equipment is expected, such as drones for anti-drone and self-defence drills, and no tanks. General Armel Dirou, the French co-lead, said: "This is not a show of force. We are not going to flex our muscles." British Lieutenant General Tom Bateman, the force commander, said the force is not a "peacekeeping or ceasefire monitoring mission", according to AFP and AP. The BBC, the Guardian and AFP report that it is not a NATO force and would not operate under NATO command.
Observers are reading: how the force's unspecified size, rules of engagement and US distance combine to shape its credibility with Moscow and with Washington.
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What to watch
The first test is visible and modest: whether national contingents from 11 countries move, communicate and resupply as one force from 9 November. Dirou called the exercise "a key milestone" and a "concrete demonstration" of the force's ability to deploy once hostilities end.
The second test is political. Delegates meet in Abu Dhabi the next day, and nothing in the reporting points to a ceasefire. The third is specification. The BBC reported that officials acknowledge national contributions will depend on the circumstances of a cessation of hostilities and individual nations' political decisions. Until governments say what they will send, and under what rules, the force remains a plan with a rehearsal attached.
In this analysis, the credibility test is whether Europe can turn a promise into a supplied, protected and politically backed force. That is a judgement about the coming months, not a reported outcome.
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