Iran is bracing for what is going to be a major blow to its already shaky economy.<br />The Trump administration has announced the return of ALL U.S. sanctions on Iran that were lifted under the 2015 nuclear deal.<br /> U.S. Secretary of State Mike Pompeo and Treasury Secretary Steve Mnuchin revealed the punitive measures on Friday that take aim at Tehran's financial, energy, and transportation sectors; specifically targeting the country's oil industry.<br /> However, eight countries are NOT expected to be penalized by Washington for continuing to import oil from Iran,... details of which will be announced Monday when the measures will take effect. <br />Tehran's foreign ministry said it isn't concerned about the return of the sanctions. <br />