Hello and welcome to NewsHour live from the BBC World Service in London.
I'm Rebecca Kesby.
High stakes in all caps.
That was the last message President Trump posted on social media
as he heads to Alaska to the Anchorage airbase of Elmendorf Richardson,
where very soon he will meet his Russian counterpart, Vladimir Putin.
Just over a week ago, Mr Trump was threatening to cripple Russia's economy,
something he still has the power to do.
But since then, he's spoken of land swaps and deals,
and the White House has described today as just a listening exercise.
Mr Trump has been clear since before he became president that he wants a quick deal to end the war.
The Ukrainian president, Volodymyr Zelensky, who's not been invited to the meeting today,
is also keen for that, but not at any price.
So what is the deal Mr Trump can get from President Putin?
Our diplomatic correspondent Paul Adams looks at what's at stake today.
The Alaska summit, Donald Trump's first face-to-face meeting with Vladimir Putin for six years,
is a big moment.
But it's also one fraught with risk.
Let's look at who controls what in Ukraine and what might be at stake in any peace agreement.
We need to go back to 2014 to see Vladimir Putin's first move,