This is a broad timeline of the course of major events of the Syrian civil war. It only includes major territorial changes and attacks and does not include every event.
The uprising against Syrian president Bashar al-Assad gradually turned into a full-scale civil war, with two significant milestones being the initial March 2011 Arab Spring protests and the 15 July 2012 declaration by the International Committee of the Red Cross that the fighting had gradually become so widespread that the situation should be regarded as a civil war.
Rebel forces, which received arms from Gulf Cooperation Council states, Turkey and some Western countries, initially made significant advances against the government forces, which were receiving financial and military support from Iran and Russia.