Propagating the Christian religion.
I'm not sure if this is supposed to be multiple choice but the legacy of colonization is characterized by the expansion of the belief that white people regin supreme over those of other races/colors and cultures. They viewed white practices as more civilized and those of other cultures as uncivilized.
The USSR’s help in defeating Japan. The US wanted Stalin to attack from above during the invasion of Japan, aka Operation August Storm. This happened with the Soviet invasion of Manchuria.
The answers are 2, 3, 4, and 6.