The reason why <span>Truman believed that the United States is the country that must help Greece and Turkey is because the United States stood as a world beacon of democracy and freedom, and wanted to ensure that other nations followed suit. </span>
American imperialism was done in the wake of a want of industrial boom.
Explanation:
IT is a repetitive pattern that countries often embark on imperialism when they have bustling industries and trade routes along with a good level of production but have bad living conditions for the people and are looking to increase their lifestyle value.
This is what happened in the late 19th century US which had prosperous businessmen but the common people were living lives in harsh conditions and had to suffer.
So, the people had an avenue in imperialism to have more profits and to extract the profits to improve their own lifestyles at home and this need made the backdrop of imperialism.