USA and Russia Nuclear Limits Expire as New START Lapses

The New START treaty between the USA and Russia expired on February 5, leaving the world's two largest nuclear powers without strategic arms limits for the first time in over 50 years.UN Secretary-General António Guterres urged Donald Trump and Vladimir Putin to immediately negotiate a new framework to prevent a global arms race.The lapse occurs as both nations modernize their arsenals while China expands its capabilities, rejecting calls from Marco Rubio to join oversight agreements.