U.S. President Joe Biden arrived in the UK Wednesday evening, kicking off his first official overseas trip since his November 2020 election victory and sending the signal of "the United States is back" to the world. Biden is expected to meet British Prime Minister Boris Johnson on Thursday ahead of the Group of Seven (G7) summit in Britain's southwestern resort of Carbis Bay in Cornwall where leaders from Britain, U.S., Canada, Japan, Germany, France and Italy, plus the European Union, will gather Friday for the first in-person G7 summit in almost two years.