“Russia has no problem with the delivery of the S-400 to Iran,” Levan Jagarian said in an interview with Iranian newspaper Resalat.

Jagarian said Moscow and Tehran can hammer out arms deals as of October 19 when a UN embargo on the sales of weapons to the Islamic Republic expires under the 2015 Iran nuclear deal, known as the JCPOA.

The United States, which was originally a JCPOA participant along with Britain, China, France, Germany, and Russia, withdrew from the deal in May 2018 and reimposed sanctions in Iran.

The US faced a humiliating defeat at the UN Security Council in August when its bid to extend UN sanctions on Iran for an unlimited period failed after it only gained one ‘yes’ vote.

US Secretary of State Mike Pompeo said in September that Washington would prevent Tehran from purchasing Chinese tanks and Russian air defense systems.

Jagarian emphasized that the US threat will “by no means” affect Russia’s arms cooperation with Iran.

“We are not be afraid of US threats and we will live up to our commitments,” he said, adding that Russia is prepared to carefully consider Iran’s proposals for arms purchases.