U.S. blockade has turned back six merchant ships leaving Strait of Hormuz The Washington PostU.S. Oil Blockade Is Set to Boost American Exports—and Prices at the Pump WSJThe economic game of chicken between Iran and the US is about to enter a dangerous new phase CNNHow geography powers Iran's grip on the Strait of Hormuz, despite U.S. blockade The Washington PostLive updates: China says Trump blockade i