okay, here's what i know England was operating east india comapny in India, and they wanted to expand more, they were already covering most part of the Europe and Asia, so they wanted to get all the asia, with china and india. So they tried to invade nepal, but couldn't succeed, to take the capital of .....gorkha i think was the capital back then before it was KTM. and they retreated. Tibet was part of China, but it separated somehow i dont know how, then now its back to china again i beleive. I think! :P