Russia says will act responsibly despite New START nuclear treaty expiry
New START between the United States and Russia expired, removing limits on deployed strategic nuclear warheads and heightening risk of a renewed global arms race.
Expiry of the last nuclear treaty between the US and Russia opens the door to rearmament
New START's expiration ends the last Cold War-era arms control limit between the United States and Russia, eliminating agreed caps on deployed strategic nuclear warheads.