Putin signs updated nuclear doctrine as Ukraine strikes Russia with US missiles

Russian President Vladimir Putin has signed a new nuclear weapons doctrine. This updated policy states that aggression against Russia or its allies by non-nuclear states, with support from nuclear powers, will be viewed as a joint attack. The revision comes as Ukraine launched its first strike into Russia using longer-range missiles supplied by the U.S. This marks a significant escalation in the conflict, which has now lasted nearly 1,000 days. The new doctrine broadens the conditions under which Russia might consider using nuclear weapons. Previously, the doctrine focused on missile threats; now, it includes any aggression supported by nuclear states.