Final answer:
Americans were not able to remain neutral in thought as well as action mostly because of the presence of European immigrants with strong ties to their home countries, the strong ties between the United States and the Allied Powers, and specific events like the sinking of US ships and the Zimmerman Telegram.
Step-by-step explanation:
Americans were not able to remain neutral in thought as well as action during World War I mainly because of several factors:
- The presence of a large number of European immigrants and their descendants in the United States who had strong ties and loyalties to their home countries, such as German immigrants and Irish Americans.
- The strong cultural and economic ties between the United States and the Allied Powers, especially Britain and France, which led to American businesses trading with these countries.
- The sinking of US ships and the Zimmerman Telegram, which further fueled anti-German sentiment and pushed the United States towards joining the war.
Overall, due to a combination of historical, cultural, and strategic factors, Americans found it difficult to remain neutral during World War I.