I'd bug out and not come back. Ever. When and if I need to fight, IF they ever find me, I'll take a few of them out with me. There's no point in
fighting the inevitable. Let it come, enjoy a nice glass of wine on the river with something tasty (as one poster mentioned) and just welcome it,
because as much as we fight, there will be no respite from it, and if you're lucky enough to survive the initial invasion, the wandering bands of
troops would eventually find and kill you.
Of course, any country would be crazy to try and take over the US, unless the gub'ment was in on it from square one. Japan was even afraid to even
try to invade during WWII, because they knew that "there would be a gun behind every blade of grass."
Many countries don't believe in American's resolve. They believe that we are fat, worthless, couch potatoes. Well, I'd like to see them try and
invade, because in fact, they would be met with guns from both military and civilian forces.
And with as many square miles as the US has, it would be a logistical nightmare to try and conquer every square inch (believe me, I've put the
scenario down on paper before...it would take a minimum of about 600,000,000 troops to get the job done, given the ratio of two troops for every man,
woman, and child currently living in the US, and that is with absolutely no casualties). Even with the combined might of China, Russia, and any other
country that would invade in your scenario, they wouldn't have enough resources or troops to keep up an invasion for long. There would be enough
"freedom fighters" out there, and "God-faring, gun toting" southerners to take care of most of the initial waves. If they reached as far north as
where I am, well, God help them, because, well, they'd be met with many more guns than they would know how to handle.
But I like Zaiger's answer. But I would make sure to get those Mr. Clean Magic Scrubbers, as poo on a wall is very hard to clean (I've experienced
it before working in the food industry...don't ask).
Peace be with you.