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The U.S.–Iran confrontation did not emerge overnight. The two countries have been adversaries for decades, with tensions rooted in ideological differences, geopolitical competition, and disputes over nuclear weapons.
Since the 1979 Iranian Revolution, Iran has been governed by an Islamic republic that opposes American influence in the Middle East. Washington, meanwhile, has long accused Tehran of supporting militant groups, threatening regional stability, and pursuing nuclear weapons.
The Nuclear Issue