re: Do you ever see war fought in American soil?

If so, it would have to be another Civil War. No other country or group of countries has the naval power and logistical reach to overcome our Navy and land-based missiles and air power. The only other navies with any kind of expeditionary reach are Japan, the U.K., and France. Aside from the fact that they're allies, their navies combined couldn't overcome our naval power to get them here. Then you have to consider how many men and how much equipment, food, fuel, and ammo it would take to conquer a country as large as ours with 330M+ people, many of them well-armed. It isn't even a remote possibility.