There are of course reasons for this. Syria hasn't asked for help. Iraq has. Even though the news reports tell us the border between Iraq and Syria has been obliterated by the IS, for all practical purposes it does still exist and Syria is a sovereign nation. To bomb in Syria requires a UN mandate which will not be forthcoming because you can be sure Russia will veto any such effort.
Why are we there? Because of the alleged imminent plot by the Khorasan to sneak non metallic bombs on airplanes. It's a stretch but it will do. Of course they threatened France in the same way yet they aren't using it as an excuse to go into Syria.
That leaves us with crowded skies over Iraq, only ourselves over Syria where the IS headquarters are located, and still no boots on the ground.
To say the least, this is another ill thought out exercise which is likely to end in futility. No one wants to send in boots if we're not willing to do so or won't admit that we actually have. So here's another war being run, if you can call it that, by vauge goals, obfuscation and no certainty of how to get out of it when things go awry.
The salute isn't the only thing this President gets wrong.