Coalition of the Willing - Europe

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25-5-10 European leaders pressure Russia over 30-day Ukraine ceasefire | BBC > .

The coalition of the willing [R-U War], as it is known, is a coalition of 31 countries which have pledged strengthened support for Ukraine against Russian aggression, going further than the support delivered by the Ukraine Defense Contact Group by pledging readiness to also be part of a peacekeeping force deployed on Ukrainian territory, either by providing troops or contributing in other ways. The peacekeeping force is envisaged only to be deployed the moment Ukraine and Russia sign a "comprehensive ceasefire agreement" or "peace deal" to settle the ongoing Russo-Ukrainian War. The initiative, led by the United Kingdom and France, was announced by British Prime Minister Sir Keir Starmer on 2 March 2025, following the 2025 London Summit on Ukraine under the motto "securing our future".

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The coalition ... met again for a third high-level summit in Paris on 27 March 2025, with an agenda to finalise the plans on how the coalition shall be designed and deployed as a military force to ensure that a potential ceasefire will be lasting for Ukraine. The agenda of the summit included drafting and debating a peace treaty proposal written by the coalition, drafting and debating how the coalition can secure a "complete ceasefire" acceptable to Ukraine, bolster aid to Ukraine (with each participating country expected to outline what it is prepared to do), and agreeing on a plan for providing long-term support for the Ukrainian army.
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The stated aim of the initiative is to facilitate the peace negotiation attempts launched and mediated by the United States between Ukraine and Russia in February 2025, by helping to build up strong enough security guarantees for Ukraine to ensure that a potential reached ceasefire or peace deal would be lasting. Besides serving the role as building up a potential peacekeeping force, the coalition have also expressed readiness to increase military support for Ukraine and strengthen economic sanctions against Russia, in the event that the ongoing negotiations for a "comprehensive ceasefire" or "peace deal" would fail. As of 20 March 2025, the exact shape and function of the coalition was described as still being subject to ongoing planning, but moved into an "operational phase".