A raised-voice spat on Friday between Donald Trump and Volodymyr Zelensky sent shockwaves across the world, with the undiplomatic shouting match casting doubts over efforts to end the Russia-Ukraine war.
The US president openly berated Zelensky for not being "thankful", later accusing the Ukrainian leader of "not being ready for peace" and having "disrespected" the United States in the "cherished Oval Office".