President Obama warned Americans of the consequences of a failure to act:
" If we fail to act, the Assad regime will see no reason to stop using chemical weapons. As the ban against these weapons erodes, other tyrants will have no reason to think twice about acquiring poison gas, and using them. Over time, our troops would again face the prospect of chemical warfare on the battlefield. And it could be easier for terrorist organizations to obtain these weapons, and to use them to attack civilians. If fighting spills beyond Syria's borders, these weapons could threaten allies like Turkey, Jordan, and Israel. And a failure to stand against the use of chemical weapons would weaken prohibitions against other weapons of mass destruction, and embolden Assad's ally, Iran -- which must decide whether to ignore international law by building a nuclear weapon, or to take a more peaceful path."