The Military-Industrial Complex is a significant aspect of American society, shaping the country’s defence policies, economic priorities, and international relations.

Since 1945, the United States has been involved in numerous global conflicts - the US needs constant warfare as a part of its economy, which is linked to the Military Industrial Complex.

The Industrial Revolution refers to significant economic, technological, and social changes that transformed societies from agricultural to industrial. Four main industrial revolutions have taken place so far.