What was a significant consequence of nationalism in early 20th century America?

Nationalism in early 20th century America played a crucial role in shaping the nation's foreign policy, particularly leading up to and during World War I. This heightened sense of national pride and identity fostered a desire to assert the United States' influence on the global stage.

As a result, many Americans began to support the idea of the U.S. taking on a more active role in international affairs, culminating in the decision to enter World War I in 1917. Nationalistic sentiments fueled the belief that the U.S. had a duty to spread democracy and protect its interests abroad, thus overcoming previous tendencies toward isolationism.

The involvement in World War I was very much a reflection of this nationalism, as it marked a significant shift from a more withdrawn foreign policy to one that sought to engage with global issues, driven by the desire to be viewed as a strong and influential power. This event not only transformed America's international standing but also helped shape the post-war order.

In contrast, the other options either represent earlier historical contexts or outcomes that were not directly linked to the intense wave of nationalism experienced during this period. For instance, while immigration was a significant issue, the early 20th century saw restrictive policies emerge in response to various social