Answer:
June 28, 1914. Archduke Francis Ferdinand is assassinated.
July 28, 1914. Austria-Hungary declares war on Serbia, beginning World War I.
August 2-7, 1914. Germany invades Luxembourg and Belgium. ...
August 10, 1914. Austria-Hungary invades Russia.
Explanation:
The U.S acuttaly tried to stay out of the war but when pearl harber happend thats when we got involed.