The 1958 Lebanon Crisis was a short-lived civil war in Lebanon, sparked by political and religious tensions exacerbated by the region's complex alliances and the Cold War dynamics. The crisis led to the intervention of the United States, which landed thousands of marines in Beirut to support the pro-Western Lebanese government. This intervention successfully stabilized the situation but underscored the fragile balance of power in Lebanon and the Middle East's susceptibility to external influence during the Cold War era.