[gozur88]

>Historically China has fought wars over its borders, there is no obvious reason why they should switch to a US style expeditionary military with world wide ambitions.

Historically China has been too weak to do anything but fight over its borders. There's nothing special about the Chinese character that would lead one to be comfortable assuming China won't become expansionist when it has the capability.

[studentrob]

You're right, expansionism is not specific to Chinese character, nor is it specific to westerners. It's a human quality.

Everyone wants to be safe at home. People want friendly neighbors. If neighbors declare themselves as enemies, you prepare for a fight. Diplomacy is useful. Nations can become friends by seeking common objectives.

America wasn't born as 50 states, the EU was recently formed, Russia has grown and shrunk and grown, and the same goes for China. The same metaphor works for your home or your body. Be good to various parts of it and the whole will be more capable. You can remove a gangrenous foot, or do your best to care for your body. Everyone dies. Life is a journey.