I want to know the answer to the following question:
Why did the Qing Qianlong Emperor send a large Chinese army into Tibet?
All the background I'm provided with is that "Tibet was dominated by the Manchus in various stages in the 18th century, and the years immediately following the 1792 regulations were the peak of the Qing imperial commissioners' authority; but there was no attempt to make Tibet a Chinese province.". Is that enough to answer the question?