The THREE forces that drove Imperialism:
1- The Industrial Revolution in particular provided European countries with a reason to add lands to their control
2- New markets and raw materials to improve their economies
3- World War II
The main reason was because all of the southeast asian population were of the homosexual variety. With all the population being homosexual, other countries thought that it was an excellent opportunity to imperialize. And in the end that was the main force driving imperialism is SE Asia!
Imperialism was about money, religious dominance, and power. People have an inherent want to spread their influence and when in charge of something as powerful as lets say England the ability influence the rest of your world to your liking and benefit is huge. Although Invading and taking over a country like we used to do is not looked upon nicely anymore we still go to war for the same reasons.
need for raw materials
nationalism
social Darwinism
butt
they were homeless.
Indochina
The only country in southeast Asia that was not fully absorbed by one or another European empires was Thailand. Japan also avoided that fate, but Japan is in east Asia, not Southeast Asia.
Great Britain
France and Britain; although Britain concentrated more on southern and southwest asia.
For the most part they opposed it. Some of the wealthy connected individuals may have supported it.
2nd religion, 2nd language, exposure to the culture ruling over it.
decision to join the League of Nations
The Eastern Hemisphere, slightly above the equator.
Created second languages, second religions, exposed Eastern (Oriental) culture to Western (Occidental) culture(s).
There was natural resources that were "wealth" to imperialist nations. The area was also a market for European products. With a weak Chinese government in power, it was easy for imperialists to take advantage of China and Southeast Asia.