Why the Straits of Hormuz are a critical path in the seas near Iran and Saudi Arabia through which much of the world's oil supplies flow. With the U.S. gaining oil sufficiency the straits of Hormuz oil supply lanes in the seas are critical to countries such as China, Japan and India which lack enough internal supplies of oil. Japan's prime minister mediated between the U.S. and Iran to keep the oil supplies lanes open and free of the conflicts and rivalry that have taken place in the region. After initially saying Iran was responsible for some tankers that caught fire, president Trump reversed himself saying that it was unintentional. The U.S. maintains oil sanctions on Iran but is careful not to worsen tensions further, and Iran suffering from the sanctions pursues a policy of trying to wait out the U.S. sanctions.