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Moving into the 21st century, the nation experienced significant technological, economic, and demographic changes. New developments in science and technology enhanced the economy and transformed society, while manufacturing decreased. The U.S. population continued to undergo demographic shifts that had significant cultural and political consequences.
The end of the Cold War and new challenges to U.S. leadership forced the nation to redefine its foreign policy and role in the world. U.S. presidential administrations have promoted interventionist foreign policies. Following the attacks of September 11, 2001, U.S. foreign policy efforts focused on fighting terrorism around the world. |
Day 5- Causation in Period 9 (8.7)
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