Britain's Prince Charles, left, greets the President of the United States Joe Biden ahead of their bilateral meeting during the Cop26 summit at the Scottish Event Campus (SEC) in Glasgow, Scotland, Nov. 2, 2021. Biden will spend four days in three nations next week as he travels through Europe tending to alliances that have been tested by Russia's invasion of Ukraine. His first stop is London, where he'll meet with King Charles III and Prime Minister Rishi Sunak. (Jane Barlow/Pool Photo via AP, File)