The presidents of Russia and Iran met Tuesday in Tehran on the sidelines of a summit of Caspian leaders. It's the first time since World War II that a Russian leader has visited Iran.
The visit comes at a time of tension between Washington, D.C., and Tehran. Vladimir Putin is at odds with the U.S. and other Western nations over the prospect of additional sanctions against Tehran.
In comments aimed at the U.S., the Russian president said he would not accept military aggression against Iran or any state in the Caspian Sea region.
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