I can definitely see the US economy failing and a coming global, economic collapse before the mark of the beast is put into effect.
Regarding that, I'm thinking worldwide cataclysm, a sudden destruction.
We see man trying to set up his kingdoms to rule the world, and a lot of pieces seem to be in place.
Just like when Jesus was crucifed - "But not during the feast, we don't want a riot!" - men have their plans, but God's timing will prevail.
I think there will be a worldwide earthquake in the middle of the Gog/Magog invasion, followed by fire and blood and hail from the sky, and by the time the dust settles and the smoke clears, all the governments will have fallen, all economies crashed, and the man of sin will take up the reins.
I hesitate to image too clearly what a different world people will wake up to that day, the world in ruins and the true church gone. They won't know it, I don't think! Anyone who says the rapture happened will be denounced the fool, "I mean just look!! The Christians are still here!!" But they won't be. The real ones will be gone. "No, they just died in the earthquake, and rains of fire, so many people dead!!"
And they will have no idea of how evil and deadly it will all soon be.
Much love!