Today, there is no possibility of a direct U.S. attack even in the backyard of China(SCS, Taiwan, etc.). There are certainly a high risk of a proxy war, especially further away from China like in Africa. The Chinese are not yet strong enough to have a military proxy war with the U.S. away from its own backyard. That is why their dealing with countries away from its own backyard has always been a bit transactional. Even for a country like Burma, so close to China, they have chosen coercion rather than direct military intervention. A few selected countries like Tanzania are drawing closer to Chinese orbits. The Chinese approach has been to strengthen the fighting capability of the government that it is dealing with, making it difficult to topple the government, at least without an invasion from the U.S. itself. If push comes to shove, and the U.S. decided to invade a country far away from China that is friendly to China, the Chinese will help all the way except sending its own troops as PLA. The Chinese can make it very costly for the U.S. to make such a move. Even a country like Venezuela, so close to the U.S., we are not able to topple as to date. With Syria, Libya, Afghanistan and now Ukraine fresh on our minds, and our economy wobbly, I think invading another country is a low probability event for the next few years. Even if the U.S. were to make such a move, it would be a short term loss to China, but would not alter the trajectory of the rise of China. In the longer term, it would be a disaster for the U.S. I don't share the view that the next ten years puts China in high danger. The Chinese have the flexibility to wait until they have already risen before engaging in a direct military confrontation with the U.S. Even for Taiwan, they can simply find an excuse to ignore them if Taiwan were to declare independence. Wait until the time is right for them to make a move.