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There are four main causes of World war one. They are Nationalism, Imperialism, and Militarism and alliance system. But the assassination of Archduke Franz Ferdinand pushed the countries into war.
The war is a like explosives and the assassination was the spark that triggered it. Ferdinand's assassination by the Black Hand a
Serbian nationalist secret society set Austria-Hungary against Serbia. This started a line of events that would bring each country into the war one at a time.
These line of events was caused by the alliance system. Each country was brought in to the war because of an allegiance to the other.
Because if the assassination Austria-Hungary attacked Serbia but Russia was allied to Serbia so Russia attacked Austria
Hungary but Germany was allied with Austria-Hungary so
Germany attacked Russia but France and Russia are allied so
France attacked Germany and Britain had a treaty with
Belgium and the German war plan involved going through
Belgium so Britain sided with France and Russia. More of the world was brought in because Britain and France had a huge empire of even more countries bringing them into the war as well. Imperialism is when a country increases their power and wealth by bringing additional territories under their control. Before World War 1, Africa and parts of Asia were constantly contested for amongst the European countries. This was because of the raw materials and wealth these areas could provide. The increasing competition and desire for greater empires led to an increase in confrontation that helped push the world into World War I.
As the world entered the 20th century, an arms race had begun. By 1914, Germany had the greatest increase in military buildup.
Great Britain and Germany both greatly increased their navies in this time period. Further, in Germany and Russia particularly, the military began to have a greater influence on public policy. This increase in militarism