World War I Questions

1. World War I began on July 28, 1914 because of conflict between powerful European countries, but what really set it off was the assassination of Archduke Franz Ferdinand and his wife Sophie by Gavrilo Princip. Austria-Hungary initiated World War I by declaring war on Serbia.
Countries in World War I include: Austria-Hungary, Belgium, Brazil, British Empire, Bulgaria, China, France and Colonies, German Empire, Greece, Italy, Japan, Liberia, Montenegro, Ottoman Empire, Portugal, Romania, Russia, Serbia, and the United States of America.

2. On April 6, 1917 the United States joined World War I because of German submarine shot a British passenger liner and killed 128 Americans when tensions were already high.

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4.World War I ended on November 11, 1918 because Germany surrendered, and all nations had agreed to stop fighting while the terms of peace were negotiated. On June 28, 1919, Germany and the Allied Nations signed the Treaty of Versailles.