Tanker War (1984-1988)
During the Iran-Iraq War, Iran and Iraq attacked each other's oil tankers in the Persian Gulf. The US Navy began escorting reflagged Kuwaiti tankers, and US-Iranian naval clashes spiked in 1988.
US forces sank Iranian ships and destroyed oil platforms after an American frigate was mined; Iran accepted a ceasefire in July 1988.
The episode established the Gulf as a zone of foreign naval intervention and showed how much shipping disruption an outside power would tolerate before acting.
Today's confrontation again pits the US Navy against Iran's Revolutionary Guard over Gulf shipping, with the strait as the prize.
