Earlier today, the United Nations passed a fourth round of sanctions against Iran in a vote 12-2, with only Brazil and Turkey dissenting (and Lebanon abstaining). The sanctions are an attempt to curb Tehran’s nuclear program, which many in the international community believe Iran will use to manufacture a useable nuclear weapon. Iran has repeatedly disregarded UN demands to cease nuclear enrichment, even moving plants to secret locations to evade officials. In defiance of the UN, Iran announced earlier this year that it would enrich uranium to 20%, as well as construct new nuclear facilities. Tehran has also shown continual intransigence regarding IAEA inspections and protocol.
This latest round of sanctions includes increased measures against select individuals of the Iranian Revolutionary Guard, increased security measures of vehicles coming from/going to Iran, and banning all nations from investing in Iranian nuclear technology. Given that the three previous rounds of sanctions failed to have any lasting effect on Iranian nuclear efforts, it is highly unlikely that the latest round will make a dent, either.