The United States announces sanctions on shipping companies and 13 cargo ships transporting Iranian goods. U.S.
Treasury Undersecretary Nielsen said all means would be taken to "cut off Iran's source of money" In July 2015, Iran reached a comprehensive agreement on the Iranian nuclear issue with the United States, Britain, France, Russia, China and Germany. Under the agreement, Iran promised to limit its nuclear program and the international community lifted sanctions on Iran. In May 2018, the Trump administration unilaterally withdrew from the Iran nuclear agreement, and then restarted and added a series of new sanctions against Iran.