President Donald Trump is set to meet with Russian leader Vladimir Putin in Anchorage, Alaska on Friday in what could ultimately be one of the most consequential bilateral conversations of his second term.

Trump’s effort to negotiate an end to the Russia-Ukraine war — which he said on the campaign trail he’d be able to do in one day — has been unsuccessful through his first 200 days in office, though this meeting will be the first time the Russian and U.S. leaders are talking in-person since Trump’s second inauguration.