Because the US has control of the sea. Because the US has built up its wealth. Because the US is the only country in the world really not to have a war fought on its territory since the time of the Civil War ... Therefore we can afford mistakes that would kill other countries. And therefore we can take risks that they can't ... the core answer to why the United States is like this is we didn't fight World War I and World War II and the Cold War here.
While certain coastal cities have become very prosperous, the rest of China has a per capita income of $200 a year. The coast wants to have nothing to do with the interior; it wants to work with Tokyo and New York. This is an old story in China. It is why Mao succeeded in 1927. He wanted [coastal] Shanghai to throw the foreigners out, but Shanghai was doing too well financially [to expel foreigners]. So Mao went to the interior and raised a peasant army. He came back to Shanghai and sealed off the country.
When you have the countries like Germany, China, and Russia decline, and be replaced by others, that's when systemic wars start. That's when it gets dangerous, because they haven't yet reached a balance. So Germany united in 1871 and all hell broke loose. Japan rose in the early 20th century, and then you had chaos. So we're looking at a systemic shift. Be ready for war.
Well the most likely emerging countries are Japan, Turkey, and Poland. So I would say Eastern Europe, the Middle East and a maritime war by Japan with the United States enjoying its own pleasures.
With the decline of American interests in the outcome of this region, there is no glue holding it together. And the countries in this region are invented ... The last guarantor of the region's borders was the United States, and the US has basically said "the hell with it." What you're really having is the collapse of nation-states because they're not nations. They're only states.
There is no difference in a country between military, economic, and political affairs. It's useful for Business Insider to divide things that way. That's useful for a college program. But a country is a country. How do you understand China's economy without China's army? If you take these all into account you're ready to explain a question like, "How come the US doesn't have a debt problem?"
Constraint theory argues a number of things. First, that the impossible has to be identified. Second, that the actor is then constrained by circumstances to act a certain way. For example, should we invade ISIS? Can we invade ISIS? What would it take to invade ISIS? Once you ask that question you discover the price of that option and then you take a look at American politics and see that the country is probably not prepared to invest the 2 to 3 million people that it would take to defeat ISIS and the insurgency afterwards. All right, so that's not going to happen.
When I get asked the question, "Do I want to loan you money?" I want to know, how much do you earn? How much do you owe? What is your net worth? When people talk about countries for some reason they only ask how much did you earn and what's your debt?