Why is the rest of the world, including United Nations and europe, unable to stop USA invading countries?

All Europe has to do is unite - the combined European economies are already bigger than the U.S. economy. As for China, it all depends on the relative growth rates. There was a time when China's growth rate was 10% and the U,.S.

Growth rate was 2%. The past year, China's growth rate has been under 8% http://www.tradingeconomics.com/china/gd... http://www.project-syndicate.org/comment... and the U.S. has been growing at least a little (over 1%) http://www.tradingeconomics.com/united-s... Catching up when the difference is 8% takes a lot less time than when the difference is only 6%. Related is the issue of "convergence".

The closer China becomes to being a fully developed economy, the lower its growth rate will be: http://en.wikipedia.org/wiki/Convergence_(economics) http://www.hks.harvard.edu/fs/drodrik/Research%20papers/Unconditional%20convergence%20rev%201.pdf In addition, once a country reaches the "middle income" level, there are additional hurdles to overcome: http://www.nber.org/papers/w18673 http://moneymorning.com/2009/11/13/mexico-leapfrogs-china Then there is the issue of political stability. China did not grow at all rapidly under Mao. It was only after the reforms that cam after Mao's death did the economy take off.

http://en.wikipedia.org/wiki/Chinese_economic_reform Whether the political situation will keep the economy growing or cause a major slowdown is not clear. There are signs both ways.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.