I'll give you a hint... most Marines in the War between the States ended up under the command of Lee.
But, that was then and this is now.
The US is not exempt from the laws of human nature. There will be those that decide they've had enough and desert the military. Likewise there will be those that remain in whatever constitutes the US military.
It WON'T be all or nothing. And because of that, I HIGHLY doubt we'll be worrying about US aircraft dropping 500 pounders in an American city.
This guy seems like a REMF. Or at the very least never been "in-the-s^^t" We've been fighting an insurgency in Iraq for almost 7 years. So, if he knew half of what he thought he did.... he would know hes full of it. A "civil war" in the US will not resemble the last one.... but more along the lines of insurgent militia forces against whatever constitutes the remaining national forces. Remember, many of these servicemembers have family that would take up arms. Is Sgt C really going to shoot at his brother, sister, uncle, neighbor, church Deacon. Killing someone isn't exactly pleasant. Would Sgt C, really feel comfortable patrolling through his parents neighborhood doing cordo-and-knocks? Would he feel comfortable shooting Mr. Jones with an M4... when MRS Jones used to babysit him and change his diapers? i think not.
That said most will try to stay out of it. Over retaliations of force (ie bombing raids) would do little more than cause more people to join the opposing forces.
This is especially so because the undecideds would be providing the capital to run the government's war machine through taxes and probably labor. Doing things like this "Sgt" claims would only push the undecides to being unproductive, counterproductive, or completely against them. This is especially critical because the US' borowing power would be severly limited in the event of a civil war..... who wants to buy Treasuries and have the government's side lose? Your investment is now worthless. Or even if the "government" won, the infrastructure is damaged and they have no way of paying you back.
This isn't 1865.... infrastructure is a bit more expensive to replace nowadays. Further, its only been within the last 25 years or so that the South has started to catch up and then finally pass the North..... the war ended in 1865... its 2010.
I also seem to remeber concentration camps being legal in Nazi Germany. I also seem to remember the legal atrocities commited by Sadam.... last I checked the majority of his military surrenderd and TURNED against the trannycal government providing aid and info to US forces.... oh yeah, and that woud be TWICE... Gulf War and OIF. remember how the actual ground phase of th Guld War lasted only 100 hours? The military gets longer than that off for Christmas.
And Iknow many disgruntled military members that are pissed about the nconstitutional power grabs.... Check out Oath Takers.
Yes a "civil war" would be messy, but this guy needs to learn a bit more before he speaks.
Utter bull$#!+ unless he's one of the handful of Force Recon, and the recon guys I knew were all to the right of Attila.
One other point that I haven't seen mentioned yet is that if a civil war really did take off, you can bet every dime in your 401k that someone, the Russians, the Chinese, Hezbollah, would take advantage of that fact and add to the confusion and chaos just to do us harm. The military wouldn't just be fighting a bunch of flabby civilian Rambo wannabes with Ruger 10-22 rifles. They could conceivably end up fighting a war on two fronts - against an invading enemy, and against insurgents at home.