Aside from condemning the U.S. attacks, Russia has not taken any more concrete moves to support Iran as its foreign minister visits Moscow.

Russia condemned the U.S.'s strikes against Iran, describing them as a "dangerous escalation" and a violation of international law.

In the wake of President Donald Trump's strike on Iran's nuclear sites, former Russian President Dmitry Medvedev said Sunday that "a number of countries" are ready to directly supply Iran with their own nuclear weapons.