These efforts did not go unnoticed, at least in Tehran. On November 25, Iranian President Hassan Rouhani personally called his Russian counterpart, Vladimir Putin, to discuss the results of the Vienna negotiations and assure him of Iran’s intentions to continue the dialogue with the P5+1.

But why is Moscow so interested in continuing the Iranian negotiations with the P5+1? At first glance, resolving the nuclear issue does not seem to be in Russia’s interests. A deal between Tehran and the West would entail the easing of sanctions against Iran and the return of Western companies to the Iranian market. This would, in turn, squeeze out Russian businesses in the Islamic Republic: in most areas, the Russians are ill-prepared to compete with European and American companies. Further, some analysts believe that the settlement of the nuclear issue will deprive the Kremlin of its status as a counterbalance to the United States and the EU in Iran. Consequently, authorities in the Islamic republic will lose interest in political dialogue with Russia. This analysis, however, is wrong.

An agreement between Iran and the P5+1 will not deal a significant blow to Moscow’s relationship with Tehran. From an economic point of view, Moscow has nothing to lose. Over the last eight years, Russian companies failed to make any substantial economic gains as European enterprises pulled out of Iran. Russian investment activity in the Islamic republic since 2006 has been unimpressive. The areas in which Russians have managed to achieve certain successes (nuclear energy) are traditional Russian strengths, and Western competition may only stimulate their activity in Iran. In terms of trade, apart from ferrous metals, wood, and petrochemical products, Russia has a very limited (and shrinking) range of goods to offer Tehran. International sanctions against the Islamic Republic have also severely limited Moscow’s cooperation with Iran. As a result, since 2011, the volume of trade between the countries has been constantly falling by more than 30 percent annually.

While the nuclear issue remains the most important aspect of Western relations with Tehran, the Russian-Iranian agenda is much broader. Both countries are deeply involved in talks about Afghanistan, the Caucasus, Iraq, Syria, and post-Soviet Central Asia. In many cases, they are interested in cooperation on regional issues. For example, Moscow and Tehran see each other as key players in the negotiation process over the legal status of the Caspian Sea. They also work together to battle drug- and human-trafficking, cross-border crimes, and terrorist organizations in Asia.

Thus, the settlement of the nuclear issue will not have a crucial negative effect on the Russian-Iranian dialogue; the sides will remain interested in cooperation on a wide array of issues. A nuclear agreement with Iran may even benefit Moscow: it will eliminate the sanctions that have hindered Russian economic activity in the Islamic republic, and guarantee that Iran will not become another “hot spot” on the CIS periphery.

Nikolay Kozhanov is a senior lecturer in political economy of the Middle East at the St.-Petersburg State University and an expert of the Institute of the Middle East (Moscow).