Great War Timeline



June 28, 1914

Assassination of Austia-Hungary's heir to thrown, Archduke Franz Ferdinand, and his wife by Serbian Gavrilo Princip sparks the start of the Great War.

Austria-Hungary on Serbia

July 29, 1914

Austria-Hungary declares war on Serbia one month after the assassination of Franz Ferdinand. The first war declaration of the Great War.

Germany on Russia

August 1, 1914

Germany declares war on Russia and France orders full mobilization.

Germany and France

August 3, 1914

Germany and France declare war on each other.

Great Britain on Germany

August 4, 1914

Germany invades Belgium to go into France, so Great Britain and Belgium declare war on Germany. President Wilson also announces that the U.S. will stay neutral during the war.

Austria-Hungary on Germany

August 6, 1914

Austria-Hungary declares war on Germany.

1st Battle of the Marne

September 5, 1914 - September 10, 1914

1st Battle of the Marne between Germany and France stops the German invasion of France.


September 15, 1914

First trenches are dug out on the Western Front which brings along with it the stalemates.


December 25, 1914

The Christmas Truce is declared by soldiers on the Western Front. There is no fighting and men sing Christmas carols and celebrate as much as they can.


February 4, 1915

Subarine blockade declared by Germany on Great Britain.

2nd Battle of Ypres

April 22, 1915

The 2nd Battle of Ypres begins and is the only major attack by Germany on the Western Front during the year of 1915. This is also battle in which gas is used for the first time on the Western Front. This was an attempt to break the stalemate as well.


April 25, 1915 - December 28, 1915

Allied troops (British and French) go to Gallipoli as an attempt to get rid of the Turks from the war. This was the first battle in which the ANZAC troops had action in the war. The allies wanted Constantinople in order to secure a trade route to Russia. This was considered one of the greatest feats of the Turkish forces. Also an attempt to break the stalemate, but fails to do so.

Treaty of London

April 26, 1915

The Treaty of London is issued between Frace, Italy, Russia, and Great Britain. This treaty was mostly for Italy and Great Britain, as Italy wanted the "bigger better deal," they wanted to be on the winning side.


May 7, 1915

The Lusitania was a passenger ship of the Allies carrying Americans. Germany's unrestricted submarine warfare campaign torpedoes this passenger ship killing close to 130 American passengers.

Battles of Isonzo

June 29, 1915 - October 24, 1917

The Battles of Isonzo are twelve battles that Italy commence and declare on Austria-Hungary, going against agreements with the Central Powers. These battles cause a lot of casualities and end up with an Italian failure. They are also when Italy switches sides from the Central Powers to the Allies because they wanted to be on the side who appeared to be winning.

Battle of Verdun

February 21, 1916 - December 18, 1916

German attack on French troops that is longest battle of the war. It is an attempt to break the stalemate, but fails.


March 24, 1916

Sussex ship is torpedoed by the Germans and the Sussex Pledge is declared saying that the Germans are no longer allowed to sink merchant ships without warning, which they later disobey.

Battle of Jutland

May 31, 1916

The Battle of Jutland is the history's largest naval battle and had no victor. The Germans try to put pressure on the British, but the British bombard them and both sides claim victory, therefore, no winner.

Brusilov Offensive

June 4, 1916 - September 20, 1916

The Brusilov offensive is the only major Russian offensive during 1916, which the Allies are successful with.

Battle of the Somme

July 1, 1916 - November 18, 1916

The Battle of the Somme is the main Allied attack on the Western Front during 1916. It causes many casualities and is a disaster. No one wins this battle, but it does take some of the pressure off of Verdun. Tanks are first used during the Battle of the Somme.

Italy on Germany

August 28, 1916

Italy declares war on Germany.


November 28, 1916

This is the date of the first airraid Germany takes on Great Britain.

Against Sussex Pledge

January 31, 1917

Germany goes against the Sussex pledge and prepares submarines to attack any ships, including passenger ships. America breaks diplomatic relations with Germany, and Germany, in response, sinks an American liner.

Zimmerman Telegraph

February 4, 1917

The Zimmerman Telegraph is sent to the U.S. stating that Germany has asked Mexico to be against the U.S. during the war.

Russian Revolution

March 15, 1917

Tsar Nicholas abdicates Russia and Lenin soon takes control of the Russian government and tries to make peace negotiations with Germany.

Battles of Gaza

March 26, 1917 - October 31, 1917

The Battles of Gaza is fought between the British and the Ottomans. The British try to take the Ottomans out of the war

US on Germany

April 6, 1917

US declares war on Germany.

2nd Battle of the Aisne

April 16, 1917

The 2nd Battle of the Aisne begins between French and German troops.

US on Austria-Hungary

December 7, 1917

US declares war on Austria-Hungary.

Peace Negotiations

December 22, 1917

Russia opens up peace negotiations with Germany.

14 Points

January 8, 1918

President Wilson gives his Fourteen Points speech which is his plan for peace without a victory.


March 3, 1918

Treaty of Brest-Litovsk was the peace treaty between Russia and its oposing powers to let Russia leave the war. In return the Central Powersd will gain some of Russia's territory and industry for their withdrawal.

German Spring Offensive

March 21, 1918

Germany starts their Spring Offensive - Five major offensives against the Allies. This is their last effort before Americans start building an army.

Armistice Day

November 11, 1918

Armistice Day was the day when all fighting ceased between Allied and Central Powers at 11 AM. This was the day with the most casualities and was the most tragic.

Peace Negotiations

January 18, 1919

This day starts the Peace Negotiations in Paris; paricipants of which blame everything on Germany and want Germany to clean all of it up because they basically lost.