Bombing the air strip is not ending the civil war. It is encouraging the rebels who may turn out to be worse.
If you want o stop the refugees start there first and stand up on your hind legs and claim your authority under the national security responsibility and tell a few judges to remain in their places; we can’ secure our country by judicial fiat leaving it open to hundreds of judges. Tell germany and Italy and everyone else you won’t support them taking in more.
Tell saudi arabia to open up their air-conditioned tent city to the Syrians until the war is over.
Bomb missile sites in Iran and NK and nuke development program locations and support Israel leading the attacks. that’s how you protect our country.
Of course it's not ... in and of itself. But this changes the dynamics and sends a message to Putin that Obama really is swimming in Tahiti and Trump is in charge.
Give this a little while to marinate .. and hope for the best: this nasty, ugly civil war and all the ramifications it has for Western civilization will find its end around a negotiating table.