What were the events that got the US involved in World War 1?

The United States initially maintained a position of neutrality in World War I, but several events prompted its involvement. The most significant was the sinking of the British ocean liner Lusitania by a German U-boat in 1915, which killed 128 Americans. Additionally, the interception of the Zimmermann Telegram in 1917, in which Germany proposed a military alliance with Mexico against the US, further inflamed public sentiment. Ultimately, these events, alongside ongoing economic ties to the Allies, led to the US declaring war on Germany on April 6, 1917.