The global trend away from individualism, and toward more government intervention in Europe, Asia, and the Americas, that characterized the 1920s and especially the 1930s was called ?

Collectivism.

Explanation:

Collectivism is a principle that believes that the goal of a society should be for the common good of everyone in the society. In collectivism, government intervention is permissible in both economic and political affairs.

The collectivism is based on certain elements such as economic equality, Government regulation, public ownership, etc.

After the Great Depression, the policy of the New Deal by President Roosevelt was founded on the principle of collectivism. The Great Depression spanned from 1929 to 1939 which affected the economy of the whole world.

During this time, the principle of collectivism was used in Europe, Asia, and America to combat the economic depression.

So, the correct answer is collectivism.