Criticism of imperialism in "A Passage to India"? explain. ... economically exhausted and facing a nonviolent nationalist movement in India led by Gandhi, ...
The main reason why the Boers and the British fought over Southern Africa was because large deposits of gold had been found in the region, and the Boers did not want the British to rule over the area and claim the riches.
Stalin suffered a sense of inferiority because he suffered severe scarring from a serious childhood disease. The scarring on his face was due to the disease of small pox that happened to him at the age of 7. He was also born with two adjoined toes in his left foot. His left arm also was a bit shorter than his right arm because of an accident that he suffered at the age of 12.
It's a leading question, as cross-Atlantic trips carrying slaves would be European of all kinds. Though vikings usually enslaved people from the Baltic area but had slaves (thralls, in Danish; "trælle") from just about everywhere.
The Dutch and Belgians were far nastier than most nords, as at some point the Spanish and the Germans. Not to mention the old empire of the queen.