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The objective was to break off Austria-Hungary South Slav provinces so they could be combined into a Yugoslavia. The assassnation led to the First World War when Austria-Hungary gave Serbia an ultimatum, and it was rejected.
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Schlieffecn Plan was the name given to the planning of the German invasion of France and Belgium in August 1914.
305,000 casualties -
The soldiers of the Triple Alliance and the Triple Entente began to dig long, deep holes where soldiers fought to guard themselves from enemy fire.
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Pope Benedict XV suggested a temporary hiatus of the war for the celebration of Christmas. The warring countries refused to create any official cease-fire, but on Christmas the soldiers in the trenches declared their own unofficial truce
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German forces shock Allied soldiers along the western front by firing more than 150 tons of lethal chlorine gas against two French colonial divisions at Ypres, Belgium
Around 1,000 killed -
Almost all her hidden cargo consisted of munitions and contraband destined for the British war effort. German torpedo crashed into it. It sunk, killing 1,119 people
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promised a change in Germany's naval warfare policy. These Elements of the undertaking:
Passenger ships would not be targeted;
Merchant ships would not be sunk until the presence of weapons had been established, if necessary by a search of the ship;
Merchant ships would not be sunk without provision for the safety of passengers and crew. -
One of the largest battles of the First World War on the Western Front between the German and French armies.
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proposed a military alliance between Germany and Mexico in the event of the United States' entering World War I against Germany.
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Pershing aimed to maintain the independence of the AEF, his willingness to integrate into Allied operations helped bring about the armistice with Germany
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President Woodrow Wilson asks Congress to send U.S. troops into battle against Germany in World War I. Four days later, Congress obliged and declared war on Germany.
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an independent agency of the government of the United States created to influence U.S. public opinion regarding American participation in World War I
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all male U.S. citizens and male immigrant non-citizens between the ages of 18 and 25 are required by law to have registered within 30 days of their 18th birthday
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was a major part of the final Allied offensive of World War I that stretched along the entire Western Front
192,000 casualties -
The first world war ends. around 22,477,500 casualties
