I will send an ultimatum to punish Serbia! They must end these rebellions!
Germany Invades Belgium
Key ~~~~~~ : Invading German troops on their way to France.
The event that really ignited World War 1 was the assassination of Francis Ferdinand, an Austrian archduke. On a trip to Sarajevo, Francis and his wife were riding in an open topped vehicle. A Serbian nationalist, named Gavrilo Princip, fired two gunshots into the car as they drove past, killing both passengers.
Stalemate on the Western Front
About a month after the assassination of Francis Ferdinand, Austria looked for a way to punish the Serbians. Francis Joseph didn´t want to go to war, so he sent them and ultimatum. This ultimatum stated that all anti-austrian demonstrations would be stopped at once.
Germany´s war plans were created many years before this conflict. These plans required German troops to travel through Belgium to sneak up on the French. This was a bad decision. Belgium was protected by many European powers, and Britain, angry about the invasion of Belgium, declared war on Germany as a result.
The US Joins the War
We are here to help!
The German's war plans did not work for a multitude of reasons. Russian forces moved quickly, and the Belgians fought back when Germany invaded. Also, British and French troops held German forces at bay at the battle of Marne. Another reason was trench warfare, which led to a bloody stalemate.
Advancements in war technology contributed to the rapidly rising number of casualties in WW1. One of these advancements was poison gas. The Allies used this weapon to blind, choke, or kill the enemy. Eventually soldiers got gas masks, but the gas was still a major hazard of the war.
In 1917, the US declared war on Germany. This event is what led the war to close. The American troops came and added around two million eager men to the battle, which then enabled the Allies to push German forces back toward Germany.