Can United States Conquer the World?

[Rex Romanum]

I remember reading something like this somewhere in this forum:
"Canada and Mexico would fall to US forces in a matter of weeks. USN and USAF could easily blocade Pacific, Atlantic, and Indian Ocean. US forces in Europe would quickly occupy the national capitals and many key cities, while using the populations as human shields againt regional governments. The same things happened in Japan and South Korea. South America and Africa are tough nut to crack, but sooner or later they will be conquered no matter what. US forces in Middle East would move to occupy Saudi Arabia, Kuwait, and other minor countries to secure the oil supplies for US forces around the world. Oh, and I forget, Russia, China, and India are get ruined by US nukes. Voila, the entire world get conquered."
What's your opinion? Should this thread get moved into ASB forum?