America came to the 'end of innocence' through its involvement in World War II, economic and human costs of later wars, and maturity during the period between the world wars.
America came to the 'end of innocence' primarily due to its involvement in World War II. The attack on Pearl Harbor in 1941 acted as a catalyst, shifting the U.S. from its previous isolationist stance to becoming a global superpower.
Additionally, the economic and human costs of the wars in Iraq and Afghanistan, along with stories of outsourcing, have reinforced isolationist sentiments in the U.S., contributing to the end of innocence.
The period between World War I and World War II was crucial in shaping American life and culture, leading to a matured and transformed nation as it faced common enemies and experienced significant growth.
https://brainly.com/question/1486685