What security guarantees for Ukraine would actually mean

Edward Arnold, senior research fellow for European security at the London-based thinktank RUSI, concludes the coalition of the willing has been "successful in providing a format which is flexible and can engage with Trump in a constructive way while supporting Ukraine". But he cautions: "It remains a political aspiration, rather than a hardened military construct. The next couple of months will really test its resolve and political risk appetite".