Regional spillover events—when conflicts in one region expand beyond borders—are among the most closely watched developments in global trade and geopolitics. These markets track military escalation, diplomatic crises, and their downstream effects on international commerce, energy supplies, and financial markets. **What drives prices in these markets?** The probability of regional spillover reflects several interconnected factors. Military capabilities and posturing by key regional actors move markets as investors assess credible threat levels. Supply chain implications—particularly for critical resources like oil and shipping routes through key chokepoints—heavily influence pricing. News flow regarding diplomatic negotiations, sanctions, or military buildups creates short-term volatility. Historical precedent and expert assessments of regional tensions establish baseline probabilities that traders adjust as new information emerges. **Common scenarios tracked here** include military action between regional powers, closure of critical shipping routes (like the Strait of Hormuz or Bab el-Mandeb), and secondary effects on global energy markets. Markets typically see price movement following escalatory rhetoric, military exercises, or weapons transfer reports, and corrections as diplomatic channels activate or tensions ease. **Why forecast these events?** Prediction markets aggregate dispersed expert opinion and real-time information into a single probability estimate, providing a continuous signal of how informed participants assess geopolitical risk. These prices inform business decisions on supply chain resilience, insurance hedging, and investment positioning. Unlike traditional polling, which measures opinion at a point in time, markets update continuously as new developments emerge, creating a dynamic risk assessment tool.