Final answer:
The United States transitioned from neutrality to intervention in World War I due to factors such as the sinking of US ships and the Zimmerman Telegram, as well as strategic concerns. These events led to a shift in public opinion and increased support for American intervention in the war.
Step-by-step explanation:
The United States moved from neutrality to intervention in World War I due to a combination of factors, including strategic concerns, the sinking of US ships, and the Zimmerman Telegram.
One major factor was the sinking of American ships by German submarines, which outraged the American public and injured American honor. Another factor was the discovery of the Zimmerman Telegram, in which Germany proposed an alliance with Mexico against the United States. These events led to a shift in public opinion and increased support for American intervention in the war.
Additionally, strategic concerns played a role in the decision to intervene. The United States feared that if Germany were to win the war, it could pose a threat to American security and interests. By joining the war on the side of Britain and France, the United States hoped to bolster the sagging morale of its allies and prevent the spread of socialism and revolution.