The United States and Britain announced a new strategic pact as their leaders rededicated the “special relationship” to counter Russia, China and economic instability. In a White House summit, U.S. President Joe Biden and Prime Minister Rishi Sunak discussed Russia’s invasion of Ukraine and the lightning-fast evolution of artificial intelligence. About USA Capital: Washington, D.C. Currency: U.S. dollar President: Joe Biden About UK Capital: London Prime minister: Rishi Sunak