In India the colonialism was conducted by the East India Company, a commercial organisation, until after the First War of Independence/Indian Mutiny, when the British Govermnment took over. In China there was never direct control of large swathes of countryside. The colonial powers insisted on and enforced trading concessions, but, apart from limited areas for their factories (trading posts), did not exert direct control.
In Southeast Asia most colonial territories were fully annexed and governed by the central government of the colonial power. Very broad brush summary. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.