The Idle Threat? An Assessment of the Economic, Military and Strategic Consequences of an Iranian Closure of the Strait of Hormuz

The continual developments in the Iranian nuclear program have caused increased concern not only for the United States but the majority of the international community as well. While several rounds of United Nations sanctions have been placed on Iran, this has not deterred it from continuing its nuclear advancements. The United States has publicly announced that it does not support Irans developing nuclear program and will inflict measures to ensure that it discontinues these advances. While these measures have not been clearly defined, Iran has stated that hostile actions taken by the international community, specifically the United States or Israel may result in the closure of the Strait of Hormuz. While Iran has used this threat in the past, primarily in the Iraq-Iran War its full strength has never come to fruition. This thesis aims to determine whether closing the Strait of Hormuz is a viable option as an Iranian retaliation mechanism against increased sanctions from the international community and the United States or a direct attack from either Israel or the United States by analyzing the economic, strategic, and military consequences for Iran, the United States and the Gulf Cooperation Council States.