What changed Woodrow Wilson's opinion about entering world war l?

Woodrow Wilson's opinion about entering World War I shifted due to a combination of factors, including increasing German aggression, such as unrestricted submarine warfare that threatened American lives and commerce. The sinking of the Lusitania in 1915 and the interception of the Zimmermann Telegram in 1917, which revealed Germany's proposal for a military alliance with Mexico against the U.S., further galvanized public and political support for war. Ultimately, the need to protect American interests and uphold international law led Wilson to advocate for U.S. involvement in the conflict.