The US debt is much more than $730 billion. Get your facts right. But you seem to have no idea of scale. $730 billion is less than 5% of US GDP. US GDP is the largest in the world, by any measure, unless you count the EU as one economy. That is real wealth - and the USA still has more of it than any other single country.
What's all this Russian wealth, by the way? The Russian economy is in sharp decline at the moment. It's spent about a third of its foreign reserves since last August. Extrapolate that forward a little . . .
Japan - oh dear. Exports down 50%! Japan is still a rich country (& I hope for the sake of my Japanese relatives it stays that way), but is in deep economic trouble right now.
China. In better shape than the others, so far, but the government says that unemployment has risen by over 20 million so far this year. Even allowing for the size of the population, that's a crisis. And per head, & in total, China is still much poorer than the USA.
I suggest a little study of economics.
Just to add to your comments here swerve,
The US is by far the richest nation on earth. Russia and China are still, for the most part, pre digital (or even industrial) nations. They are both
miles behind the west economically. Its laughable when people think that having a current account surplus (even a large one) means you are somehow "richer" than the worlds largest economies, especially while your nation is undergoing the industrial revolution (which the west did 200 years ago).
Japan has just emerged out of 10 years of no growth, and is now amongst the worst performing 1st world nations on earth.
Newsflash people, the Chinese growth model is inherently unsustainable, just like the Japanese growth model was in the 70's and the Tiger economies were in the 90's, simply because they grew out of fundamental socioeconomic weakness rather than strength. Fueled by government loans to the private sector that are usually made due to political connections rather than best business practice, leads to inherently unsustainable and unprofitable growth. Just like those other nations, there is a correction coming, but in china's case the correction is going to be massive.
The main difference with China is there are significant centrifugal forces that threaten territorial integrity all lurking under the surface, such as the massive regional imbalance of wealth. None of these forces were present in Japan or South East Asia. When the correction comes, and I guarantee you it will, there is every possibility china will tear itself apart. That's why Beijing is so worried about keeping growth to above 6%, if it doesn't unemployment would rise in the provinces (which is usually than indication of recession rather than growth) and the underlying social problems will rear their ugly head.
The whole thing has happened before. In the 1800's china was opened up to trade, (forcibly by the Europeans, hardly our finest hour), which lead to a comparable economic boom, which in turn lead to a regional imbalance of wealth, which in turn tore the nation apart.
The US is the center of the world trade system, much like Europe was in the 1800's. US economic (& military) dominance is not going to change any time soon.