The last remaining nuclear arms control treaty between the United States and Russia expired on Feb. 5, ending legally binding limits on the world’s two largest nuclear arsenals for the first time in decades.
The New Strategic Arms Reduction Treaty, known as New START, entered into force on Feb. 5, 2011, and was extended for five years in February 2021.
It capped each side at 700 deployed long-range missiles and bombers, 1,550 deployed nuclear warheads, and 800 total launchers and bombers, whether deployed or not, according to the treaty text.
Russian President Vladimir Putin said in September that Moscow was ready to extend START by one year….