The U.S. has begun airstrikes in Syria, a U.S Defense official has told Fox News. The airstrikes are in response to the strike which killed 3 American soldiers in Jordan, according to FOX News national security correspondent Jennifer Griffin. Subscribe to LiveNOW from FOX! https://www.youtube.com/livenowfox?sub_confirmation=1 Where to watch LiveNOW from FOX: https://www.livenowfox.com/ Follow us @LiveNOWFOX on Twitter: https://twitter.com/livenowfox Raw and unfiltered. Watch a non-stop stream of breaking news, live events and stories across the nation. Limited commentary. No opinion. Experience LiveNOW from FOX.