Answer:
1. Led to the Austrian declaration of war on Serbia, and sparked World War I
(Assassination of Ferdinand)
On June 28, 1914, Archduke Franz Ferdinand, heir to the Austro-Hungarian throne, was assassinated in Sarajevo. After a month of violent events, Vienna sent an ultimatum to the Serbian government asking for 10 difficult points to fulfill. Serbia responded to the ultimatum by accepting all points except the sending of an Austrian committee to investigate the crime. Faced with this refusal, the Austro-Hungarian Empire declared war on Serbia.
2.Led to the English entrance in the war on France's side
(German march across Belgium)
Russia mobilized its troops in defense of Serbia and Germany sent an ultimatum to Russia to stop the mobilization and another ultimatum to France not to intervene as an ally of Russia. Faced with the refusal, Germany declares war on Russia and sends part of its troops to France, passing through Belgium.
The United Kingdom declared war on Germany in defense of Belgium and entered the conflict.
3. Incident that sparked the U.S. declaration of war on Germany
(Sinking of Lusitania)
On May 7, 1915, German submarines sank the Lusitania ship, killing 128 American sailors. On May 7, 1915, German submarines sank the Lusitania ship, killing 128 American sailors. After a great internal debate, the United States declared war on the central empires in April 1917, entering the conflict.
4. Influenced German surrender
(Surrender of Turkey and Bulgaria)
Bulgaria and Turkey surrendered, the Balkan area was taken by the allies. Italy defeated Austria-Hungary in Vittorio Veneto.
Germany was with its forces to the limit and demoralized, when losing its allies, it also decided to surrender.
5. Brought peace at the end of World War I
(Treaty of Versailles)
The treaty of Versailles was proposed by the victorious powers (United States, France, England and Italy) and was accepted and signed by the central empires that had lost the war ending the war.
6. Created to build up the military service of the United States
(Committee on Industrial Preparedness)
During the war, the United States formed the Council of National Defense in order to coordinate 7 different areas involved in it.
The participation of the Industry was coordinated by the Committee on Industrial Preparedness, as part of the Council of National Defense.
7. Wilson's plan for lasting peace after World War I
(Fourteen Points)
President Wilson wrote a list of 14 points that should be agreed upon to reach peace at the end of the war. These points were used as arguments of pressure for the negotiation of the Treaty of Versailles.
8. Organization proposed by Wilson for peaceful settlement of world problems
(League of Nations)
President Wilson also proposed the creation of the League of Nations in order to avoid future armed conflicts through active, coordinated diplomacy and with mechanisms previously agreed by all participating nations. This was a step prior to the creation of the ONU.
9. Viewpoint favoring the fair treatment of all nations
(Just peace )
During the peace negotiation at the end of the war there were lines of thought that proposed to reach peace without taking revenge against the countries that lost the war, but simply have a fair treatment towards them solving the specific disputes claimed by different sides in diplomatic form.
10. Viewpoint favoring the harsh treatment of the Central Powers
(Peace of vengeance)
Another line of thought and action was a much more severe position towards the countries that lost the war, because they were also the ones who initiated it and should pay a cost that would serve as punishment and dissuade future attempts.