Half a century of US-Russian arms control ends with expiration of nuclear pact

Donald Trump has been noncommittal about extending the New Start treaty, despite Vkadimir Putin’s readiness (Julia Demaree Nikhinson/AP)

The Kremlin said it regretted the expiration of the last remaining nuclear arms pact between Russia and the United States that left no caps on the two largest atomic arsenals for the first time in more than half a century.

Arms control experts say the termination of the New Start Treaty could set the stage for an unconstrained nuclear arms race.