Iran's cooperation with Russia 'a threat' -U.S. State Dept.

STORY: "The crux of this is, is that Iran remains Russia's top military backer, and Iran has already provided Russia with artillery and tank rounds for use in Ukraine," Patel said.

The White House on Monday said that the United States is seeing more indications that Russia and Iran are expanding an unprecedented defense partnership that will help Moscow prolong its war in Ukraine as well as pose a threat to Iran's neighbors.