A combined operation with the armed forces of france and the United Kingdom is now under way. The u. S. Says the operation has targeted at least three sites. They include a Research Center near damascus, a chemical Weapons Storage Facility west of homs, and a nearby command post and Storage Facility. The strikes follow disturbing scenes like the one youre about to see from last week. Now, this purports to show people in douma being treated after a chemical attack. The World Health Organization says dozens of people were reportedly killed. About 500 others showed signs of chemical exposure. The u. S. Says there is proof that at least chlorine was used in the attack. Cnn has reported around the world covering the story from every angle. We begin our coverage this hour with Fred Pleitgen in the lab these capital beirut. Ryan brown at the pentagon. And sam kiley in moscow. Fred, well go to you first. Youre in beirut, and now its the morning in damascus. I think its about 10 00 a. M. Tell u