Strait of Hormuz
On July 3, General Mohammad Ali Jafari, Head of the Iranian Revolutionary Guards, said that "[a]ny action against Iran is regarded as the beginning of war" and that Iran would respond to an attack by closing the Strait of Hormuz. Forty percent of the world's oil supply passes through the Strait of Hormuz. On July 7, Commander of the United States Fifth Fleet Vice Admiral Kevin Cosgriff said that the US Navy "will not allow" Iran to close the Strait of Hormuz. Last month Vice Admiral Cosgriff warned that any attempt to seal off the Strait of Hormuz would be an act of war.