U.S. President Donald Trump will meet with Russian President Vladimir Putin on Aug. 15 in Alaska to negotiate an end to the war in Ukraine, Trump said Friday.

Trump made the highly anticipated announcement on social media after he said that the parties, including Ukraine President Volodymyr Zelenskyy, were close to a ceasefire deal that could resolve the 3½-year-old conflict, one that could require Ukraine to surrender significant territory.

Addressing reporters at the White House earlier on Friday, Trump suggested an agreement would involve some exchange of land.