Coalition of the Willing signs Ukraine security agreement with U.S. support, establishing multinational force and ceasefire monitoring mechanism.

Russia doubled down on its longstanding position of declaring Western forces in Ukraine “legitimate targets” on Thursday, days after France and the UK pledged to send troops there in the event of a peace deal.

Ukraine's allies said they had agreed to provide the country with multilayered international defense guarantees as part of a proposal to end Russia's nearly 4-year-old invasion of its neighbor.

Britain and France firmed up a postwar troop commitment in Ukraine, though Russia has said it will reject any deal that allows NATO-country forces in Ukraine.

Ukraine will grant UK, France and all other nations contributing to the MNF-U right to use necessary means, including use of force, says declaration of intent - Anadolu Ajansı