Syrian rebels now in possession of sophisticated anti-aircraft missiles

Some Syrian rebel factions have obtained advanced portable antiaircraft weapons, according to rebels and regional officials, a development that could alter the Syrian war’s trajectory and fan U.S. concerns that such weapons could end up in the hands of anti-Western Islamist militias.

Video footage uploaded to the Internet earlier this week appears to show rebels in Aleppo using weapons that military experts and rebels say are heat-seeking, shoulder-fired missiles, the first documented instance in the conflict. Versions of the weapons—also known as man-portable air defense systems, or Manpads—have been smuggled into the country over the past two months through Turkey and to a lesser extent Lebanon, according to Syrian rebels and those who supply them arms through an “operations room” coordinated by regional governments…

U.S. officials oppose the introduction of such weapons in Syria, citing long-standing fears that they could wind up in the hands of anti-Western militias that could eventually use them against the U.S. and its allies, or sell them to terrorists. “Obviously, we are concerned about the proliferation of Manpads,” said a U.S. official.