They were responding to the unprecedented shift in the transatlantic alliance that has played out since Donald Trump returned as US President a month and a half ago. Here are the main things to know from Zelensky’s trip to the UK.

President Volodymyr Zelenskyy arrived in the U.K. on Saturday, directly after his meeting with President Donald Trump and Vice President JD Vance in Washington, D.C.

Keir Starmer has been joined by Emmanuel Macron, Ursula von der Leyen and other key European leaders as they begin to arrive at Lancaster House for a London summit. The meeting will be the biggest European peace summit since the end of the Second World War.

The meeting has been overshadowed by the extraordinary scolding of Ukrainian President Volodymyr by President Trump at the White House.

This summit was in many ways an attempt by Europe to take some ownership of the diplomacy. In recent weeks, efforts to end fighting in Ukraine have been led by Trump speaking to Russian's President Vladimir Putin and at his Ukrainian counterpart Volodymyr Zelensky.

British Prime Minister Keir Starmer’s exhortation comes two days after U.S. backing of Ukraine appeared in jeopardy when President Donald Trump lashed out at Ukrainian President Volodymyr Zelenskyy.

NATO chief Mark Rutte has warned that it is vital for the future of European security that the US and Ukrainian presidents are back on speaking terms ahead of a crucial summit in London

But Trump has given no indication he is prepared to offer assistance to ensure any agreement holds. European promises to re-arm — the president has been telling the continent to stop freeriding on US guarantees for the best part of a decade — may have come too late.

Ukrainian President Volodymyr Zelensky joined leaders from Europe, Turkey and Canada in London on Sunday for a summit on the war in Ukraine and European security hosted by UK Prime Minister Keir Starmer.

The Prime Minister said that getting a good outcome for Ukraine is ‘vital to the security of every nation’ at the summit ‘and many

Ukrainian President Voldymyr Zelenskyy has just arrived at Lancaster House, where he was greeted warmly by Sir Keir Starmer. The pair spoke briefly outside the door, before heading inside to attend the emergency international summit. NATO chief 'very ...