As western leaders meet, questions remain about the steps they could take to prevent any future Russian aggression

Russia-Ukraine war – latest news updates

European leaders have been holding a virtual conference call to discuss what security guarantees they could give to Ukraine in the event of a peace deal with Russia. The discussion follows Monday’s unprecedented get-together in the White House hosted by Donald Trump. The US president met Volodymyr Zelenskyy and held talks with Britain’s Keir Starmer, as well as the leaders of Germany, France, Italy, Finland, the European Union and Nato. The main topic was how to end the war in Ukraine, the continent’s biggest since 1945, and how Europe might stop Russia from attacking again.

Zelenskyy has said that the details will be worked out and “formalised on paper” within a week to 10 days. As many as 30 countries – called the “coalition of the willing” – are likely to be involved, with some help from the US, although what that might mean is unclear. Speaking after his meeting on Monday with Donald Trump and European leaders in the White House, Zelenskyy said their support could take many forms.

One of those could be prysutnist (the Ukrainian word for presence), meaning they would provide troops. And it might include intelligence, as well as providing security in the air and on the Black Sea, or simply funds, he said.