I believe parts of the Islamic world would like to but are too busy being disunited to pull it off.
If China takes Taiwan, it may not lead to anything more ......
China is doing to well out of trade to start fighting, but if abandoning the one child policy leads to a population surge, will that create internal pressure to expand?
Pressure to expand seems trivial in a country so vast as China with ‘ghost cities’ waiting to be populated.
Sometime in the next year or two, India’s population will exceed China’s and continue to grow vis-à-vis China’s.
Just another worry for us all.
Also, Sub-Saharan Africa will grow population-wise to twice that of India in the next 50-75 years.