Concerns have mounted in Europe and Ukraine that Kyiv may be pressed to give up land or accept other curbs on its sovereignty.

Washington’s push to negotiate an end to the war has raised concerns the Trump administration will make concessions to Moscow that Kyiv finds unacceptable.

The U.S.-Russia summit in Alaska is happening at a site where East meets West in a place familiar to both countries as a Cold War front line of missile defense, radar outposts and intelligence gatheri