There are conflicting reports about S-300 missiles that Russia promised to supply Iran. Tehran said they were shipped, but Moscow denied that and Iran’s claim that it fully paid for them. This raises speculation over whether Russia has supplied the missiles, and if not, whether it will do so.

Their bilateral relations are strange. They are both willing to confront the West in the region, using one another in a temporary alliance. However, their interests are different, particularly in light of Iranian rapprochement with the West.

The extremist wing of the Tehran regime believes rapprochement will be at the expense of its domestic influence and comes with regional conditions. That is why these hard-liners told the Kremlin some two weeks ago that it would spend $8 billion on more Russian arms.

Perhaps Iran thinks it can buy the Russians while reconciling with Washington. However, if Tehran is betting on tempting Moscow with money and military deals, it will be disappointed because it is competing with three richer countries: Saudi Arabia, the United Arab Emirates (UAE) and Qatar.

However, if Iran is trying to build a regional military and political alliance with Russia, this will benefit Gulf countries because such an alliance will thwart the United States rapprochement and cooperation with Tehran. Options are more difficult for Tehran than for its neighbors.