What role will the USA play during the Tribulation Period, and where will the Antichrist come from?

How did we get here? How did we end up in such a mess? The Antichrist had come and taken over just as the Scriptures had predicted. He was mean and full of hate, for Satan had entered him. The signs were there that he was coming, but men paid them no attention and continued to sin. He refused to change his heart and turn back to God; he continued in his evil ways until there was no remedy. The Holy Spirit had been taken up, and the Tribulation had begun. It was horrible and unlike anything anybody had ever heard of or seen before.