Russian President Vladimir Putin warned of global "chaos" on Sunday in a phone conversation with Iran's president as the two men discussed the U.S.-led strike on Syria.
According to a statement, Putin and Iranian President Hassan Rouhani discussed the missile attack that targeted a science lab and two chemical weapons depots and agreed "that this illegitimate action has seriously damaged the prospects for a political settlement in Syria," the statement from the Kremlin said.
Putin and Iran have maintained their support for Assad despite his continued use of chemical weapons, which Russia said it would stop in 2013. On Saturday, the Russian government went so far as to introduce a U.N. resolution that condemned coalition forces for launching the joint airstrike.
"Vladimir Putin, in particular, emphasized that if such actions continue in violation of the UN Charter, this will inevitably lead to chaos in international relations," the Kremlin said in a statement about the call.
Although the White House and the Defense Department made it clear that they intended to pursue only the one strike unless Syria used chemical weapons again, the U.S. ambassador to the United Nations, Nikki Haley, underscored that the United States is "locked and loaded" in her statement on Saturday.
"When our president draws a red line, our president enforces the red line," Haley said at an emergency U.N. meeting called by Russia. "We are prepared to sustain this pressure if the Syrian regime is foolish enough to test our will."
Haley followed up with an appearance on CBS' "Face the Nation" on Sunday in which she promised further consequences for those allied with Assad, namely Russia and Iran.
"You will see that Russian sanctions will be coming down," she said. Treasury Secretary Steven Mnuchin "will be announcing those on Monday, if he hasn't already. And they will go directly to any sort of companies that were dealing with equipment related to Assad and chemical weapons used."