On December 2, 2012 President Obama delivered the following warning to the Assad regime.
“Today, I want to make it absolutely clear to Assad and those under his command [that] the world is watching," he said. "The use of chemical weapons is, and would be, totally unacceptable. And if you make the tragic mistake of using these weapons, there where be consequences, and you will be held accountable.” (Marshall, 2012
Three months later, in March 2013 (Fielding-Smith, 2013) and again in August 2013