Syria: Who are the rebels seizing control of Aleppo? | LiveNOW from FOX

Extremist Syrian Islamist forces have seized control over much of Aleppo, the second-largest city in the war-torn country, raising significant new questions for the U.S. government about its policy in the highly volatile Syrian Arab Republic.

Former President Barack Obama cut a widely criticized deal with Syrian regime dictator Bashar Assad in 2013 to remove his chemical weapons program. U.S. officials later said that Assad likely retained part of his chemical warfare apparatus. Assad has repeatedly used poison gas on his population to dissolve the democratic revolt that unfolded against his regime in 2011.

There are currently about 900 American soldiers in Syria as part of a mission to defeat the Islamic State. The U.S. military presence in Syria, according to Mideast experts, also helps to blunt the Iranian regime's attempts to absorb of parts of Syria.

LiveNOW's Christina Evans spoke about the developing situation in Syria with retired Marines intelligence officer Hal Kempfer.

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