>>India and China both have nuclear weapons, meaning death trigger for everyone on earth, you don't want to touch that.
Yet they--and USA, Russia, France, UK etc--also have millions of soldiers and spend gazillions a year on conventional military stuff. Usually try to outdo each other.
>>Tibet on the other hand is a very long, complex and different story
Complex it is, but it's now 100% part of China, regardless of whatever.
>>in China, nobody think of India or Vietnam etc as enemy
Yet, they all have militaries and somewhere on the shelves they plans to attack /defend from each other. They are friends until they aren't. https://www.nytimes.com/2014/07/13/opinion/sunday/vietnams-o... https://en.wikipedia.org/wiki/China%E2%80%93India_relations#...