Traders assign a 96.3% implied probability against a North Korean invasion of South Korea before 2027 because recent developments show no large-scale troop movements, sustained artillery barrages, or other indicators of imminent conventional attack across the DMZ. Pyongyang continues missile tests and border fortification while deepening military and economic ties with Russia, reinforcing its "two hostile states" doctrine and nuclear status without crossing into full conflict. Strong U.S.-South Korea deterrence, including joint exercises, further raises the costs of any escalation. North Korea's leadership appears focused on diplomatic openings with Washington and regime survival rather than the high-risk gamble of war. Rare scenarios that could still shift odds include a major miscalculation during border incidents or sudden internal pressures altering Kim Jong Un's calculus in the short window remaining.