What us foreign policy idea was express in a military man or what involvement in the korean war

Hoover greatly believed in the spirit of individualism, that hard work pays its own rewards and that is the only thing needed to survive. So he just asked individuals to work harder and the business leaders to keep workers employed. He believed that retaining workers and continuing production would help sustain the economy. 

However, by late 1931, he recognized the need for some government intervention upon seeing that those steps were not enough. 

i believe the answer is a