Archduke Franz Ferdinand was assassinated in Austria-Hungary by Gavrilo Princip, a member of the extremist group, the Black Hand.
The vessel Lusitania is sunk by German U-boats, which causes the United States to take interest in the war for the first time.
Germany is forced to sign the Sussex pledge stating that they will not blindly shoot ships anymore and will at the least inspect them for enemy war cargo before deciding if it stays or goes by the United States.
Germany breaks the Sussex pledge, which lead to the next war declaration.
The war is brought to a close.
Many nations gather to discuss bringing about peace in Europe. The Treaty of Versailles is written up demanding Germany keep no armies, hold little territory, and replace everyone's navy, effectively destroying its economy. Germany complies to an extent, refusing to replace everyone's navy.
Austria-Hungary declares war on Serbia on June 28th, Germany on France on August 3rd, Belgium on August 4th, Britain on Germany on the 4th, Austria Hungary on Russia on August 6th, France and Britain against Austria-Hungary on the 12th.
Despite orders from the Central Powers, Italy declares war on Austria-Hungary.
The United States declares war on Germany in response to their breaking of the Sussex pledge.
The French and British conducted this battle in a successful attempt to thwart the Schlieffen plan. The Germans were driven back and much ground was recovered.
The first battle in which chlorine gas was deplored. Germans used it against the Russians at Ypres.
Italy fights Austria-Hungary over the span of twelve battles over borders. Even when other nations step in to back up both sides, little gets achieved.
The Germans attempt to take Verdun, a spot that was of great value to the French. The battle brought little success for either side involved.
The largest Naval battle in the war during which the British and the German fleets. The British defeated the Germans.
The Brusilov Offensive was a Russian Offensive against the Germans as a means of weakening them and keeping them out of Verdun. The Austrio-Hungarian army was laid waste to during this battle and Austria-Hungary lost its status as major military power as a result.
Incredibly bloody battle between Germans and French. Brought to a close by snow.
Germany's last stand in the war-- saw Germany defeated again by French after disastrous attempts to bring down their army. The German army is left in a crippled state.