Last remaining U.S.-Russia nuclear arms control treaty expires

WASHINGTON - The last remaining nuclear weapons treaty between the United States and Russia expired Thursday, marking the first time in over five decades that the countries will be without a legally binding framework to control such arsenals, raising the risk of a new global arms race.

The expiry of the New Strategic Arms Reduction Treaty, which entered into force in 2011, comes amid increasing geopolitical uncertainty, driven by factors such as U.S. President Donald Trump's "America First" agenda and China's rapid military rise.