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Arhduke Francis Ferdinand Assassinated
- One of the reasons that sparked the outbreak of WWI
- His wife Sophie was also assassinated with him by Bosnian Serb
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Austria-Hungary Declares War on Serbia
- Was the beginnning of WWI
- Started due to the assassinantion of Archduke and his wife.
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Germany Declares War on Russia
- Austria had declared war on Serbia just a few days before over the assassination of Archduke Franz Ferdinand. Germany, an ally of Austria, in return declared war on Russia.
- Sparked WWI
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Germany Declares War on France
- Germany was planning to attack Russia, and they knew France would honour its alliance with Russia so they could declare war on them.
- France surrendered on June 22, 1940.
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Germany Invades Belgium
- The Belgian government mobilised its armed forces on July 31at and a state of Kriegsgefahr, "danger of war," was proclaimed in Germany.
- Resulted from the request of a free passage through Belgium.
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German U-Boats Sink the Lusitania
- The ship was identified and torpedoed by the German U-boat U-20 and sank in 18 minutes.
- The United States protested the actionand made Germany later apologize.
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Germany Announces Unrestricted Submarine Warfare
- A type of naval warfare in which submarines sink vessels such as freighters and tankers.
- Restricted submarine warfare was a result of desperation from Germany and they beliefved that the ferocity of it might just keep America out of the war if the results were good enough.
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Zimmerman Note is Discovered
- It was a 1917 diplomatic proposal from the German Empire offering a military alliance with Mexico, in the event of the United States entering World War I against Germany.
- It was intercepted and read by British intelligence in January 1917.
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US Declares War on Germany
- They were trying to make the world safe for Democracy.
- Entered the US into WWI.
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Russian Monarchy is Overthrown
- Russia became a representative government.
- Vladimir Lenini overhtrew the provisional government.