Iran arms sales: US struggles to win support for extension of UN ban

European nations fear extension of arms sale ban would result in Iran leaving 2015 nuclear deal The US may be forced to accept a UN code of conduct restricting conventional arms sales to Iran, since it is struggling to win unanimous support at the UN security council for a formal extension of the existing UN ban, which expires in October. European nations fear a formal extension of the ban would result in Iran leaving the nuclear deal.