Russian-Iranian relations began crystallize and expand significantly after the
end of the Cold War and the disintegration of the Soviet Union in 1991, but
these relations seemed cautious in the beginning, despite the existence of
common interests
between both countries represented to strengthen Iran's
military and economic capabilities, Russia considered as a supportive partner
in this field, in addition to nuclear cooperation where Russia was the only
country that has not been subject to pressure from the United States and
accepted the signing of the contract for the establishment of the Iranian
nuclear reactor, In contrast, Russia has considered these relationships an
opportunity to improve its economy, which suffered a strong tremor after the
disintegration of the Soviet Union.