Question

what are the main features of the World War first ​

Answer 1

To form league of nation
Mass movements
Pls pls mark it as brainiest

Answer 2

Answer:

It was a global war. Over 30 nations declared war between 1914 and 1918. The majority joined on the side of the Allies, including Serbia, Russia, France, Britain, Italy and the United States. They were opposed by Germany, Austria-Hungary, Bulgaria and the Ottoman Empire, who together formed the CentralPowers.

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