This was strategic messaging. Mission accomplished (the world did take notice). The strike was not that big and a military tit for tat.
"A military official said the attack was at the more limited end of the military options presented to Mr. Trump on Thursday by Defense Secretary Jim Mattis. The official said the strike was intended to send a signal to Mr. Assad about the United States’ intention to use military force if he continues to use chemical weapons."
In addition, not only did we selected a limited strike option, we warned those on the receiving end of it. Planning was done to ensure low losses even among Syrian personnel.
"Capt. Jeff Davis, a Pentagon spokesman, said Russian forces had been notified in advance of the strike. “Military planners took precautions to minimize risk to Russian or Syrian personnel located at the airfield,” he said. No Russian aircraft were at the base, military officials said."
Also note this:
"Mr. McMaster said the missile strikes would not eliminate Mr. Assad’s ability to use chemical weapons, but would degrade it. He said the United States military had specifically sought to avoid hitting what it believes is a facility containing more sarin gas at the airfield."
Degrade is a very fuzzy and sometimes reviled term in the military targeting world. One of the Warrants who is well known in the targeting community likes to give a speech about how degrade is the most BS military objective ever, because it allows commanders to cause even the slightest damage to something, and still claim mission success (and hence their political masters).
The Syrian people understand this:
"Alaa Alyousef, a 27-year old resident of Khan Sheikhoun, said Friday the U.S. missile attack "alleviates a small part of our sufferings," but he worries it will be like "anesthetics," to save face. AlYousef said the U.S. is capable of "paralyzing" Syrian warplanes.
"What good is a strike on Shayart air base alone while we have more than 15 other air bases," he said. "
This strike was clearly more than a pin prick, but the photos also show a clearly limited strike against certain key points. This was not "Rolling Thunder".
https://www.nytimes.com/2017/04/06/...responses-to-syrian-chemical-attack.html?_r=0
http://www.foxnews.com/world/2017/0...te-photos-show-major-damage-to-airfields.html
http://www.foxnews.com/world/2017/0...ost-completely-destroyed-after-us-strike.html