The United States Central Command has released dramatic audio of a real-time warning broadcast by the United States Navy as it enforces a sweeping blockade on Iran. In the message sent out at sea on Wednesday, U.S. forces make their position crystal clear: “The U.S. has announced a formal blockade of Iranian ports in coastal areas. This is a legal action. All vessels are advised to immediately return to port if leaving and discontinue transit to Iran if that is your next port of call.” Watch.