The United States was prompted to enter World War I primarily due to the unrestricted submarine warfare conducted by Germany, which threatened American shipping and lives. The sinking of the British ocean liner RMS Lusitania in 1915, resulting in the deaths of 128 Americans, heightened tensions. Additionally, the interception of the Zimmermann Telegram in early 1917, in which Germany proposed a military alliance with Mexico against the U.S., further galvanized public and political support for intervention. As a result, the U.S. declared war on Germany on April 6, 1917.
German submarine warfare
Confederates fired on Ft. Sumter.
The event that triggered the fighting between the north and south was when Jefferson Davis ordered that Fort Sumpter be attacked. This started the American Civil War. States rights and slavery were also trigger points.
The secession of the various Southern states (following South Carolina's lead) was triggered by Lincoln's rejection of the final compromise, because it would have allowed some extension of slavery. The actual combat was triggered by the firing of Confederate artillery at the Union garrison on the island of Fort Sumter in Charleston Harbour.
The main event that triggered America's entry into World War II was the surprise attack on Pearl Harbor by the Japanese on December 7, 1941. This attack led to significant losses for the U.S. Pacific Fleet and galvanized public support for entering the war. The following day, December 8, 1941, President Franklin D. Roosevelt delivered his famous "Day of Infamy" speech, and Congress declared war on Japan, marking the official entry of the United States into the conflict.
What event triggered the great depression
Invasion of poland
invasion of poland
Hitler's invasion of Poland in 1939.
Militancy triggered by the cultural and territorial encroachment resulting in the Creek War.
Germany's invasion of Poland.
German submarine warfare
Confederates fired on Ft. Sumter.
the great depression triggered WWI
The Assassination of Archduke Franz Ferdinand of Austria triggered the start of the Great War (World War I)
The breaking point was when Germany invaded Poland on September 3rd 1939
The event that triggered World War 1 was the assassination of Archduke Franz Ferdinand of Austro-Hungary on June 18, 1914 in Sarajevo.