China calls for calm after Putin's nuclear threat over Ukraine missile strike

China has called for "calm" and "restraint" following a new nuclear threat from Russian President Vladimir Putin. This comes after Ukraine used US-made ATACMS missiles to strike Russian territory for the first time, escalating tensions. Putin's recent decree allows for nuclear weapons to be used against non-nuclear states like Ukraine if they are backed by nuclear powers. This response follows a shift in US policy, permitting Ukraine to target Russian territory. China maintains its stance of promoting dialogue to ease tensions in the Ukraine crisis. While it claims neutrality, it remains a close ally of Russia, drawing criticism from NATO members for not condemning the war.