U.S. President Donald Trump is meeting face-to-face with Russian President Vladimir Putin in Alaska on Friday for a high-stakes summit that could determine not only the trajectory of the war in Ukraine but also the fate of European security.

ANCHORAGE (AP) — Orthodox Christians across Alaska have been taking part in three days of prayer for peace ahead of Friday’s summit there between U.S. President Donald Trump and Russian President Vladimir Putin, which will focus on the war in Ukraine.

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.