Had 0bama and his advisors ever served in the military they would have learned the First Rule of Orders.
The First Rule of Orders states: Never, ever, give an order you don't KNOW will be obeyed.
I doubt that more than a third would side with the leftists and that would be the high point of their support. Even if every single member of the US Armed Forces sided with the leftist coup, they would be overwhelmed by the mass of armed veterans with training and means to kill them in sufficient numbers to render the coup moot and its leaders dead or awaiting execution for Treason.
You might enjoy Matt Bracken's, What I saw at the coup. Matt is active on Free Republic as Travis McGee. He lives just south of me in Jacksonville, FL.
"Ceterum censeo Hillary esse delendam."
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)