Donald Trump's interventions over the Ukraine war have created a "viable" chance of a ceasefire, but Britain stands ready to "increase pressure" on Russia if necessary, Sir Keir Starmer has said.In a call with allies on Wednesday, the Prime Minister said the meeting expected between the US president and Russian leader Vladimir Putin is "hugely important", but any deal must protect Kyiv's "territorial integrity".

Donald Trump's interventions over the Ukraine war have created a "viable" chance of a ceasefire, but Britain stands ready to "increase pressure" on Russia if necessary, Sir Keir Starmer has said.In a call with allies on Wednesday, the Prime Minister said the meeting expected between the US president and Russian leader Vladimir Putin is "hugely important", but any deal must protect Kyiv's "territorial integrity".