Kuwait and Iran share close diplomatic, economic, and military ties, which is unusual for a Sunni Arab state and even more unusual for a U.S. ally even it is sporadic. After the Iranian Revolution in 1979, Kuwaiti Prime Minister then Sabah Al-Sabah (the future Emir of Kuwait) visited Iran and congratulated the Iranian Revolution. However, this quickly turned sour when Kuwait supported Iraq on its war against Iran, and there had been no official relations between Kuwait and Iran for nearly 10 years after it started to fear about the threat from the legacy of Iranian Revolution.