“I believe there was a chemical attack. We are looking for the actual evidence,” the secretary told lawmakers on Thursday.~ James Mattis, U.S. Secretary of Defense.
That was Gen. Mattis’s statement on April 12, 2018. Two days later, France, Britain, and the U.S. bombed Syria because of its alleged responsibility for the highly-debatable chemical weapons attack in Douma. Some new YouTube videos must have been uploaded to put any USG doubts to rest.
To give Mattis his due, I am reasonably certain that his likely hesitancy (informed by personal combat experience) about charging off half cocked was overridden by the president’s eagerness to “do something.” Would that the old witticism were now in everyone’s mind: “Don’t just do something. Stand there!
Onward into the Deep Woods where there are many monsters.
 "Mattis: Still no evidence on Syria chemical attack, but I believe there was one ." By RT, 4/12/18.