Here are some key takeaways from the high-stakes meeting. President Trump on Monday said the United States will be involved in security assistance for Ukraine -- a key condition for Zelenskyy in any deal to end the war -- but did not elaborate on what exactly that would look like or give any specifics.

A White House official said the multilateral meeting in the East Room between President Trump, Ukrainian President Volodymyr Zelensky and European leaders has ended. Zelensky and the European leaders are meeting with Trump in the Oval Office,

President Donald Trump and Ukrainian President Volodymyr Zelenskyy's meeting in the Oval Office was notably different from their last encounter in February.