Over the past two years, what began as a series of peaceful protests against the repressive regime of Bashar al-Assad has turned into a brutal civil war. Over 100,000 people have been killed. Millions have fled the country. In that time, America has worked with allies to provide humanitarian support, to help the moderate opposition, and to shape a political settlement. But I have resisted calls for military action, because we cannot resolve someone else's civil war through force, particularly after a decade of war in Iraq and Afghanistan.