I don't remember who said it, but I remember the phrase.
“China is a sleeping tiger“—or a giant—“When we wake it up, it will be a disaster for the world.” Some famous person said that.
China has already had the ambition of controlling the world for a long time. China considers itself the centre, and other people as barbaric. That is part of China's 2000-year-old culture. If you look at 2000 years of China's history, you'll see that China expanded continuously, without losing any territory. The British empire lost. The Ottoman empire lost. The Soviet empire lost. But for 2000 years, China did not lose an inch because China never makes a clear border agreement with other countries. When it gets stronger, it claims territory. That is exactly what is going on in Tajikistan, Kyrgyzstan, Kazakhstan, and other countries.
If you look at a Chinese textbook today, you'll see that there is a famous phrase saying that Genghis Khan united all of China. What does it mean? The areas where Genghis Khan went are supposed to belong to China. That's what it means. Now China is in a stronger financial situation, so it is spending money, and lending money to countries it knows cannot afford to pay.