I was trained to be an army officer, and even though I'm out now, I still continue honing my tactical skills and learning the operational art. You have to be able to defend yourself and lead others to do the same. So if you do go off to the mountains and hole up there, you'd kill an entire platoon of infantry assaulting just a few well-trained men. The one great lesson that I have learned is that the public has very low tolerance for casualties, and the Army is very cognicent of this. If the fight becomes too politically costly, they have no choice but to pull out, even if they can achieve tactical victory. My hands were tied time and again in my two tours in Iraq due to the rules of engagement which toward the end practically prohibited any kind of show of deadly force.

Read FM 100 on Army Leadership, and after that read the entire M16 manual, which will teach you about basic marksmanship principles. Learn each eschelon of command up to batallion, and you'll be able to stand against anything the government will throw at you once the turn our own army on us "radicals."

It's funny that the first line of the oath of service is "I will support and defend the Constitution of the United States against all enemies foreign and domestic." We have some very serious enemies of the Constitution sitting in high offices in Washington DC that think our cornerstone manuscript is nothing more than a rag. I would say that makes them an enemy by definition.