U.S. President Donald Trump and Ukrainian President Volodymyr Zelensky had a tense showdown in the Oval Office on Friday—the likes of which many world leaders were able to watch unfold, thanks to the media being present with their cameras rolling.

European leaders have rallied behind Volodymyr Zelensky after Donald Trump's furious exchange with the Ukrainian president in the White House. The leaders of Germany, France, Spain, Poland and the Netherlands were among those who posted social media messages backing Ukraine - with Zelensky responding directly to each one to thank them for their support.