The next step of the diplomatic process aimed at putting an end to Russia’s war against Ukraine is set to be a meeting between Volodymyr Zelenskyy and Vladimir Putin. But where could that meeting take place?

Ukrainian President Volodymyr Zelenskyy said he wants a "strong reaction" from the U.S. if Russian President Vladimir Putin does not sit down with him for a bilateral meeting.

Despite Trump's positivity, the meeting is far from guaranteed. Putin has repeatedly refused to meet with Zelenskyy during the conflict, having consistently sought to undermine the Ukrainian president's legitimacy. Russian officials rarely use Zelenskyy's name, preferring to refer to "the Kyiv regime."

President Trump hosted Ukrainian President Volodymyr Zelenskyy and European leaders at the White House on Monday, an event the U.S. president called "a very good, early step" to possibly resolve the war in Ukraine.

With a chance to make a better second impression in the Oval Office, gratitude diplomacy was front and center for Zelenskyy. In addition to thanking the president six times, Zelenskyy extended gratitude to Melania Trump for personally writing to Russian President Vladimir Putin to think about the Ukrainian children and urge peace.

Moscow continues to throw cold water on the prospect of Putin-Zelenskyy meeting, and is insisting Russia have a role in security guarantees for Ukraine.

The Ukrainian president met with Donald Trump at the White House, and experts think there's a lot to take away from their interactions.

Ukraine’s Volodymyr Zelenskyy has accused Russia’s Vladimir Putin of “trying to wriggle out of holding a meeting” to agree a ceasefire deal.