What was the timeline of the Syrian civil war from 2011 to 2020?

The Syrian civil war began in 2011 when protests evolved into a revolution and then escalated into a full-scale civil war. This brutal conflict raged for nearly a decade, claiming approximately 600,000 lives and forcing more than 6 million people to flee the country as refugees. By 2020, the war entered a tenuous ceasefire that largely froze the front lines, leaving the Assad regime in control of most of Syria's major cities and population centers. This period marked a significant, though fragile, pause in hostilities after years of devastating conflict that had fundamentally reshaped the country.