Telegraph: Iran and Russia are negotiating to receive the S-400 system The English newspaper "Telegraph" claimed in a report that Tehran and Moscow are negotiating to receive Russian S-400 systems to strengthen Iran's defense network. According to the Telegraph report, these negotiations continued during the recent visit of Mohsen Razai, the secretary of Iran's Supreme National Security Council, to Moscow and consultations with Vladimir Putin. In this journey Razai was the bearer of the revolutionary leader's message to the President of Russia. The "Telegraph", quoting an anonymous Iranian source, claimed that the issue of the defense system is the main focus of the message from Tehran to Moscow and that Iran is optimistic about the results of these negotiations. However, this English newspaper claims that there are obstacles in the way of transferring these systems to Iran from Russia. The "Telegraph", citing analysts and regional officials, writes that Russia has repeatedly raised the issue of selling this system over the past few years, but has refused to deliver it. The fear of the effect of such an action on Moscow's relations with Israel and other countries in the region is one of the possible reasons for this approach. In addition, Russia itself is facing limitations in the field of supplying air defense systems. Ukraine's ongoing drone and missile attacks on refineries, air bases and other facilities have put a lot of pressure on the country's air defense network. Therefore, Moscow may not be willing to hand over some of its advanced systems in the current state. Recently, with the publication of Russian military documents, it was also noticed that this country is building and developing missiles that can be fired from helicopters for Iran.