Crisis in Syria: What you need to know

Published On: Sep 09 2013 01:22:19 PM CDT   Updated On: Sep 10 2013 12:29:10 AM CDT

As the U.S. considers a military strike in Syria, take a look at some of the key things to know about the conflict and the country.

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Thomas Evans/CNN

The opposition didn't start out as a military movement. Peaceful protests against President Bashar al- Assad's government are how it all started in February 2011, after authorities arrested 15 schoolchildren for painting anti-government graffiti on the walls of a school in the city of Daraa. Syrian security forces opened fire at one demonstration, killing at least four protesters -- the first casualties, activists say, in Syria's civil war.

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