No, I blame the fact that, despite all its weapons and technology, the USA can never entirely defeat a nation. The US is great at destroying a city or whatever, but to take over a nation of people with absolute intent to never back down, good luck with that. Game over. USA loses.
Deerrrppp.
Thats because we've never had that intent.
To do that, we'd have to annihilate everything. Good luck getting someone to convince the public and the politicians to go destroy an entire nation for no reason.
We have never, ever, gone to war (in recent history) with the intent of taking absolute control of someones elses country. Thats not how we roll.
Way to make yourself sound like a dumbass. Its pretty clear you know jack shit about the US military history.