The Strait of Hormuz has been weaponized before. A look at past disruptions to the critical oil waterway

Before the current war in Iran, nearly a fifth of the world’s oil traveled through the Strait of Hormuz. The U.S. and Israel’s war with Iran has thrust the Strait of Hormuz once again into the crosshairs of a geopolitical conflict.Iran has ground to a halt nearly all traffic in the waterway that connects the Persian Gulf to the rest of the globe’s oceans, shutting down a critical path for the world’s flow of oil. Attacks on commercial ships and threats of further strikes have stopped nearly all tankers from carrying oil, gas and other goods through the passage. That’s also led to cuts from some of the world’s largest producers, because their crude has nowhere to go.This is hardly the first time the Strait of Hormuz has been weaponized. Ship seizures and past fighting in the region have raised alarm for commercial ships, at times severely disrupting their ability to sail through. Iran has also repeatedly threatened to close the strait in response to sanctions and other tensions over the years, but stopped short of cutting off traffic entirely. Even with the bulk of traffic halted amid the current war, dozens of vessels have still managed to cross the waterway, according to maritime and trade data platforms.While Iran and Oman both have territory in the Strait of Hormuz, its narrow shipping channels are viewed as international waters through which all ships can travel. Still, Tehran holds significant influence over the passage through its nearby military presence and control of key islands in the area.The latest clash, now in its third week after the U.S. and Israel launched strikes on Iran and killed its supreme leader, has resulted in major consequences for energy markets: Roughly a fifth of the world’s oil traveled through the Strait of Hormuz before the war, and strains on supply have sent fuel prices soaring.Here are some others instances when traffic in the Strait of Hormuz has been disrupted or threatened.