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Rex Tillerson said that steps are underway to remove the Assad regime. The United States has also accused Assad of using chemical weapons, yet provided no clear evidence or documentations other than reports by people in the area.
This is striking similar to the invasion of Iraq based on false accusations of Weapons of Mass Destruction being used by Saddam Hussein. What's Putin's stance on US invasion of Syria? He said he is in support of the Assad regime (ally to Russia) but now with talks of chemical weapons, what's his stance?