On Sunday 28th June, 1914, the heir to the Austro-Hungarian Throne, Archduke Franz Ferdinand, and his wife, were assassinated by Gavrilo Princip, part of a Serbian Terrorist Group, called the Black Hand at Sarajevo, the capital of Bosnia and Herzegovnia.
This event and the tension between Europe was a trigger that set off declarations of war and resulted in World War 1. Tensions had been building up in Europe for decades through Nationalism, Imperialism, Militarism, and Alliances, and these tensions had reach such a point that an event was needed to break these tensions. This was the assassination of the Archduke. Therefore the assassination, Nationalism, Militarism, Imperialism and Alliances were causes of World War One.
NATIONALISM
Around the 1900, there was a love and devotion that started to occur towards a persons country. Instead of belonging to different dukes or kings, people started to have nationalism or patriotism towards their country, a sort of pride towards their country. This pride in one’s country resulted in countries thinking that they were superior than other countries, and that sacrificing other land, countries or people for the benefit of your own country was a good thing, because your country is “better” and therefore has more rights. This started alliances and unity between countries whom had same goals and therefore could fight together. For example in the case of the unity between Britain and France, they united because they both believed they were fighting external aggression that threatened their security (From a growing industrialized now unified Germany.) In purpose of defeating Germany If needed, and alliance was formed, because in reality, the Nationalism in Russia and Britain was that we are better than Germany, and therefore together we can be superior to it. In Germany though, there were two trains of thought. The prevailing thought line was Germany needed to enter the