Tensions between Austria-Hungary and Serbia dramatically Increases
Russia, France, Germany, and UK are in the war within a week.
Halted the German Schlieffen plan. the Germans were forced to retreat. At this point, many trenches were dug.
They target any vessel that goes into any enemy port. This made neutral nations angry.
Only German offensive in 1915. First use of poison gas.
Allies attack turkey in an attempt to get Russia supplies. Allies failed to do so.
It outrages the British public as it was an ocean liner. Italy also joins war on the side of the allies.
It was believed by the Germans that if Verdun was taken, it would be a major blow to the morality of France as it was an important symbol.
They then had to warn merchant ships before they torpedoed them. they did this after they were threatened by the united states.
This was the most major naval battle of the war. The German fleet was effectively defeated by the royal navy. The German fleet then kept their distance from the northern waters as the royal fleet's dominance was established.
Major offensive by the British to relieve the forces at Verdun. considered to be the bloodiest day in the history of the British army. the British were slaughtered by the Germans. The tank was introduced.
Unrestricted submarine warfare continues again.
The Russians sign an armistice with Germany and pull out of the war due to their recent revolution. This made the war a single front war.
US President Woodrow Wilson offers Europe "peace without victory" in his fourteen points speech, it is declined by both sides.
They are stopped once again outside Paris at the Marne river.
The Paris Peace Conference is held with the intention of ending war in Europe. It is unsuccessful. It was lead by America, Italy, France, and Great Britain.