2. Government intervention in the economy: The war led to an unprecedented level of government intervention in the economy. The government set prices for goods, controlled production and distribution, and took over some industries. This marked a significant shift in the role of government in the economy and laid the foundation for future New Deal policies.
3. Increased federal power: The war greatly expanded the power of the federal government. The federal government took on new responsibilities, such as regulating the economy, providing social welfare, and managing the war effort. This increase in federal power came at the expense of state and local governments.
4. Cultural and social changes: The war led to significant social and cultural changes in the United States. Women entered the workforce in large numbers, and African Americans gained new opportunities for employment and social mobility. The war also led to the rise of new forms of entertainment, such as jazz and film.
5. Isolationism vs. internationalism: The war initially led to a wave of isolationism in the United States. However, the country's victory in the war and its emergence as a global power led to a shift towards internationalism. The United States became a member of the League of Nations and played a key role in shaping the postwar world.
6. Red Scare: The aftermath of the war saw an intense fear of communism and radicalism in the United States. This Red Scare led to the Palmer Raids, during which thousands of suspected communists and anarchists were arrested and deported.
7. Economic boom and bust: The war stimulated the US economy, leading to a period of economic prosperity in the 1920s. However, the economy collapsed in 1929, leading to the Great Depression, which had a devastating impact on the country.
8. Changing role of the United States in the world: The United States emerged from World War I as a major world power. It played a leading role in the international community, particularly through its participation in the League of Nations and its economic influence.
In conclusion, World War I had a profound impact on the United States, leading to significant changes in its economy, society, culture, and international standing. The war accelerated many of the changes that were already underway in the country and set the stage for the United States' role as a global superpower in the 20th century.