North Korea test-fires its most powerful missile

North Korea announced Thursday it had test-fired a powerful new missile to bolster its nuclear deterrent. This followed a warning from Seoul that Pyongyang might test another intercontinental ballistic missile (ICBM) or even conduct a nuclear test ahead of U.S. elections. The launch came hours after U.S. and South Korean defense chiefs urged North Korea to withdraw troops from Russia, citing possible deployment against Ukraine.