Answer:
Serbian nationalism is what caused war
Explanation:
nationalism in a whole started coming into play during the 1860s and would lead to the formation of a German state known as the German Empire It also unified separate Balkan states under nationalities like Bulgaria, Greece, Serbia, Romania, ect.
30 states have passed the right
B. unrestricted submarine warfare and the zimmerman telegraph
The Zimmermann Note, or telegram, was sent by German Foreign Minister Arthur Zimmermann. He sent it to his ambassador in Mexico and the goal was to get Mexico to become an ally of Germany. It said that Germany would, after it won the war, give the Southwestern US back to Mexico. The United States entered the war because of the Germans' decision to resume the policy of unrestricted submarine warfare, and the so-called "Zimmerman telegram."
There were over 1,000,000 casualties who died in the Civil War and this war killed more than other american wars. <span />
