<span>Korea and its neighbor Manchuria had been of great importance to the USSR, the PRC (People's Republic of China) and Japan since the nineteenth century. Following this tradition, after World War II the USSR made an attempt to occupy Korea. </span>
That is because in many societies worldwide, families still don't want to send girls to schools because they don't think that it's a place where girls should go. Governments try to fight this with various incentives but often the cultural tradition is stronger than these incentives and this creates a society not based on equality. This is relatively common in underdeveloped countries.
The Marshall Plan could be understood as part of an American desire to stop the spread of communism.
After World War II, the US was worried about the growing size/influence of the Soviet Union and their communist system. Their main concern was that this system would spread to European countries and eventually the Soviet Union and their communist ideas would infiltrate the US.
To ensure that this did not happen, the US gave $13 billion worth of economic aid to European countries that were greatly affected by World War II. This included countries like Great Britain and France. This assistance would make sure that these countries did not fall under the control of the Soviet Union.