Question

What was the major factor that enabled western Europe to dominate large parts of Asia and Africa in the 19th and 20th centuries?

Answer 1

For the answer to the question above, I believe the answer is that the technological and military superiority of European nations is the reason why the western Europe to dominate large parts of Asia and Africa
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Answer 2

Large part of Asia and Africa in the 19th and 20th centuries was dominated by Western Europe due to the technological and military superiority of European nations. Having advance technology and military superiority, the European undergone major changes and colonize other countries and establish the age of imperialism.