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Warfare where armed forces attack, counterattack, and defend from permanent systems of trenches dug into the ground. -
Archduke was assassinated by Gavrilo Princip in order to prevent a "threat" to Serbian independence and it caused the start of World War 1. -
Marked the beginning of the First World War. One of the world's most tragic conflicts in the history of the human race. -
Germany sought to bypass the French defense by moving through Luxembourg and Belgium. It was all under the Schlieffen Plan. -
A Serbian dissident shot and killed the heir to the throne of Austria-Hungary. in response they declared war on Serbia. Serbia had a treaty with Russia, therefore, causing Russia to declare war on Austria-Hungary. -
The most commonly used gas in World War 1 was 'mustard gas'. There were around 91,000 gas deaths in World War 1. -
Britian blockade cut the flow of war supplies, food and fuel to Germany. In return, Germany destroyed neutral ships that were supplying the Allies. -
They wanted control of the Dardanelles and re-establish sea communications with Russia through the Black Sea and end the Ottoman Empire's role in the war. -
The Germans felt themselves fully justified in attacking a vessel that was furthering war aims of their enemies. -
It was the Emperor's obstinacy that caused Italy to enter the war as an enemy of the Danube Monarchy. -
They wanted to secure victory for Germany on the Western Front. It began when Germany started pounding the forts and trenches with artillery fire. -
On February 21, 1916, the Germans attacked at Verdun. In order to assist their ally, the British launched their attack on the Somme earlier than planned. -
It was a secret message that Germany was trying to send to Mexico, but it got intercepted by the British. It was Germany offering Mexico United States territory in return for joining the German cause. The helped draw the US into the war. -
Germany's resumptions of submarine attacks on passenger and merchant ships were the primary motivation behind the US going into World War 1. -
The tired British and French troops needed the relief offered by the American forces. Gen. John J. Pershing arrived in France with his staff to establish American forces in Europe. -
Just over 200 female telephone operators ultimately served in France with the 1st, 2nd, and 3rd Army Headquarters. -
In a speech before Congress, Wilson laid out his "14 points." It was an ambitious blueprint for ending the World War 1 that emphasized "national self-determination." -
General Pershing's troops launched an attack along the Meuse River and into northern France's rugged Argonne Forest. It would be the deadliest battle in American history. -
The Armistice was signed at 5:00 a.m. by Marshal of France Ferdinand Foch. It was the first step to ending World War 1 -
British and American Forces had a treaty, and both entered Germany. -
The Paris Peace Conference was an international meeting convened at Versailles just outside Paris. Its purpose was to establish the terms of the peace after World War 1. -
Under Wilson's resolute leadership, the conference was able to draw up a document which was called the Covenant of the League of Nations. -
The Senate rejected the Treaty of Versailles, which ended World War 1. President Woodrow Wilson failed to take senators' objections to the agreement into consideration. -
It subjected Germany to strict punitive measures. It required the new German Government to surrender 10% of its territory in Europe and all of its overseas possessions.