Biden meets eastern NATO allies after Putin’s nuclear warning
NANDITA BOSE and ALAN CHARLISH U.S. President Joe Biden met leaders of NATO's eastern flank to show support for their security after Moscow suspended a landmark nuclear arms control treaty, which he called a "big mistake". Biden arrived in the Polish capital Warsaw late on Monday after a surprise visit to Kyiv just days ahead of the anniversary of Russia's invasion of Ukraine on February 24, 2022. Amid the highest tension between Russia and the West since the Cold War over three decades ago, Biden addressed thousands in downtown Warsaw on Tuesday and said "autocrats" like Russian President Vladimir Putin must be opposed. Hours…