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He was the heir to the throne of Austria-Hungary. His wife was also killed by the same people that killed him. -
Austria-Hungary declares war on Serbia. This would be the start of World War 1. -
From August 2-10, 1914 Germany had invaded Luxembourg and Belgium. France invades Alsace. British forces help to arrive in France. The Nations that allied against Germany were eventually include Great Britain,Russia,Italy, Australia,New Zealand,United States,Canada,Poland, and Portugal. -
February 18th, 1915 Germany begins to start a naval blockade of Great Britain. -
A German submarine sinks the passenger liner Lusitania while crossing from New York to Liverpool, which resulted in the death of 128 Americans -
Italy declares war on Austria-Hungary on May 23rd, 1915 -
Germany begins to attack on Verdun on February 21st, 1916. -
The Allies begin to start the offensive Battle of the Somme on July 1st, 1916 -
The Battle of Verdun ends with 550,00 French and with 450,00 German casualties on December 18th, 1916. -
Germany returns to using unrestricted submarine warfare halted after the sinking of the Lusitania on February 1st, 1917 -
The United States declares war on Germany on April 6th, 1917. -
March 3,1918 Russia signs the Treaty of Brest- Litovsk with Germany. -
Germany begins it's final offensive of the war on March 21st, 1918. -
The United States of America win the Battle of Cantigny, which was the first independent American operation on May 28th, 1918 -
United States sign peace treaties with Germany, Austria, and Hungary on from August 24th-29th, 1921.