Ukrainian President Volodymyr Zelensky will meet European leaders at a vital summit in London on Sunday, after his extraordinary argument with US President Donald Trump in the Oval Office left Western allies reeling and threw the future of the Russia-Ukraine war into deep uncertainty.

I’m just crying because of what I hear,” one Ukrainian lawmaker said of the meeting, echoing the dismayed reactions of others in Europe.

European leaders meeting in London should focus on their collective strength - not barnyard brawls in the Oval Office

Within a short time, prime ministers and presidents from the north, south, east and west of the continent posted on social media in support of Zelenskiy and Ukraine in the war against Russia's invasion,