The talks on Friday in Alaska pull the Russian leader out of diplomatic isolation from the West, and Ukrainian and European leaders fear it gives him an opening to sway the American president.

President Donald Trump and Russian President Vladimir Putin head to Alaska on Friday for a high-stakes summit as the U.S. seeks a ceasefire in the Russia-Ukraine war.

“The symbolism of Alaska would be a reminder of how it was possible for the United States and Russia for most of the 19th century to transcend their ideological and political differences and their expansionisms, to have warm, friendly cooperative relations,” says David S. Foglesong, a history professor at Rutgers University - New Brunswick.