The prospect of a temporary ceasefire between Russia and Ukraine, let alone a negotiated end to the war, remains elusive after the second round of direct talks in Istanbul on Monday. Instead, the Kremlin is demanding sweeping territorial,

Russia possesses the world’s largest nuclear arsenal (5,580 warheads) and has repeatedly threatened escalation over the Ukraine war. -While the probability of use remains low, four main delivery systems are likely candidates for a “limited” tactical nuclear strike.