US President Donald Trump's call for Vladimir Putin to stop attacks on Ukraine underscores the risky assumption he made in his pursuit of a quick end to the war. He thought the Kremlin wanted peace, The Wall Street Journal reports.

President Trump’s inability to halt the war in Ukraine after promising to do so quickly has left him increasingly frustrated. The question now is whether he is willing to press Moscow for concessions to get a deal.

President Donald Trump and Ukrainian President Volodymyr Zelenskyy have held a brief meeting at the Vatican to discuss the Russia-Ukraine war