[I’m not aware of any attempted mutiny when they were ordered to bomb Serbia. ]
Serbia happened under Clinton, but that was before 911. Now our military would be much less likely to support Islamic regimes for any reason, which is what they would be doing if they shot down Israeli warplanes.
The “soft coup” is that Obama must know that he can’t trust his own military, thus his actions are limited within a sphere. If he says “over the top”, the troops might not charge.
The armed forces swear to defend the Constitution and there is nothing in that document that disallows attacking an ally if ordered to do so.
I don't believe the US military is capable of mutiny beyond unit level and then it's unlikely.
Lastly, there is always a General Turgdson or a Major Kong around to get the job done.
PS: Yes, I know that congress also swears to uphold the constitution, but that's a different breed of cat.
PPS: In the meantime, I have fingers crossed in hope that you are correct.