European countries justified their imperialism through their beliefs. They viewed European/Western society as being civilized while they viewed other cultures as primitive and uncivilized. Imperialists also justify invading foreign territory by citing the improvements their culture and innovation had on the occupied territory. Social Darwinism's visions were an impact in imperialism.
Social Darwinism professes that those who were fittest for survival enjoyed health and prosperity. The Industrial Revolution also gave the British justification because they claimed they were encouraging improvements in society with railroads and steamships. Economic expansion was another factor, as were class and race divisions Many people in Europe presumed it was their mission to civilize people of the world who did not have the luxury of Western civilization.