Trump's Demand for China Ends Nuclear Treaty With Russia

António Guterres warned of a grave moment for global security after the New START nuclear treaty between the USA and Russia expired on Thursday.Donald Trump and Marco Rubio indicated that future agreements must include China, although Beijing has consistently rejected joining trilateral arms control negotiations.The lapse leaves the two nations, which hold 90 percent of the world's nuclear weapons, without binding strategic limits for the first time in decades.