Six Gulf Arab nations that backed the extension of the arms embargo noted arms shipments to Yemen in their objection to the resumption of any weapon sales to Iran.
The attempt to "reinstate terminated Security Council resolutions against Iran failed when 13 members and three consecutive presidents of the Council rejected the US claim", it said.
US President Donald Trump withdrew his country from the nuclear deal in 2018 and has unilaterally begun reimposing sanctions on Iran. In 2015, Tehran entered into a deal with Russia, China, Germany, Britain, France and the United States that saw Iran promise to halt its nuclear weapons program for relief from crushing economic sanctions.
Calling this "a momentous day for the global community", Zarif said the world has defied "malign United States efforts" to protect the Security Council resolution and the nuclear deal. The US, in turn, introduced new unilateral sanctions against Iran, akin to those by the United Nations pre-2015, threatening to punish any country that decides to sell or buy armaments to or from the Islamic Republic.
While Iran says it plans no "buying spree", it can now in theory purchase weapons to upgrade military armaments dating back to before its 1979 Islamic Revolution and sell its own locally produced gear overseas.
After the Security Council rejected the Trump administration's attempt to expand the arms embargo on Iran in August this year, the United States unilaterally reinstated the UN sanctions that were lifted under the accord.
In case of measures amounting to a "material breach of the resolution and the purposes" of the deal, Iran reserved "the right to take any necessary countermeasures to secure its national interests".
The U.S. Defense Intelligence Agency (DIA) predicted in 2019 that if the embargo ended, Iran would likely try to purchase Russian Su-30 fighter jets, Yak-130 trainer aircraft and T-90 tanks.
Iranian Foreign Minister Mohammad Javad Zarif said in a tweet that the global community had "protected" the nuclear deal and Sunday marked the "normalisation of Iran's defence cooperation with the world".
Last week, Iranian Foreign Ministry spokesman Saeed Khatibzadeh said during a news conference in Tehran the arms embargo will end on October 18 despite USA efforts to block it.
"Iran has never been an Israeli problem, but, first and foremost, a global and regional problem", he wrote on Twitter.