One fact differentiates the population of the United States from any other group of citizens in history.
We are WELL-ARMED.
Very well-armed. And this fact makes any enemy think twice about trying to invade this country.
That is an historical fact.
It might be easy to fight an army, that is led by officers, and which adheres to classic military tactics.
When you are fighting armed civilians, it gets much more unpredictable.
Let's say that a Soviet-style army was transported up the Houston Ship Channel to disembark in Houston.
A regular army defending Houston might make a tactical withdrawal from the city in order to trade real estate for time to mount a defense.
Not so the private citizens of Houston, who have NOWHERE to go, and no inclination to abandon their homes to the invaders.
They would individually and in small bands fight the invaders, suffering massive casualties, of course, but so preoccupying the invading force as to seriously disrupt its own plans and timetables.
When your elderly parents are invalided, unable to be moved with ease, and there is no one left to defend them, you would fight like a banshee and make the invaders' lives a sheer misery.
And the invaders would have to fight block by block just to make it through Houston, while other citizens would be rallying to the call to come to Houston and defend the Republic!
Word to the wise ~
DON'T MESS WITH TEXAS!Or any other State in the Union if you know what's good for you.
Eric The(YeeeHaawww!)Hun