World war one is famously known as the “Great War” or the “War to End All Wars” because of its size and intensity. It lasted from 1914 to 1918, and involved the Triple entente (Russia, France, and Great Britain) and the Triple Alliance (Germany, Austria-Hungary, and Italy). Along with these six powers, several other smaller countries contributed to the war. The most important of the other powers was Serbia or Bosnia, who was also said to have ultimately started the war with one action in Austria-Hungary. The war also killed more than eight million soldiers and sailors, and more than twenty million were injured. More injuries and deaths were caused by developments in technology. New methods of travel such as submarines and tanks were invented to ensure more protecting along with weapons such as flamethrowers, gas bombs, and machine guns. And while it was Germany who wanted to start the alliances and become a national superpower, Germany didn’t ultimately start the war. Germany can easily be blamed for the factors that contributed to the war considering the rivalries and deaths the they caused. However, it isn’t justified for Germany to receive all the blame for the great war because there was a much bigger idea that led to the war. That idea was nationalism and militarism. Then, Serbia took the first shot that started the war when Austria-Hungary’s Archduke Franz Ferdinand and his wife were killed by a Serb group called the “Black Hand”. Nationalism was one of the main causes of world war 1 because it fueled Austria-Hungary’s ambitions and motives for annexing Bosnia and Herzegovina in 1908, causing the Slavic population to divide. After the annexation, the Austro-Hungarian Empire had only grown throughout the later part of the 19th Century and early 20th Century. Serbia didn’t approve of the annexation of Bosnia, so tensions were fierce between the two neighboring countries who both had different ambitions of their own. These ambitions resulted in the Balkan wars in 1912. After the war, a group of slavic people formed whom stood for nationalism and a united serbian country. The annexation of Bosnia only continued to fuel the Black Hand’s anger, and that’s when the decision to kill the Archduke came into play. The Serbians were loyal to their country and allies, so if they needed to, they would fight for their freedom from Austria-Hungary. In fact, nationalism became so strong in Bosnia and Serbia that the practice took on a new name, Pan Slavism. There was no nationalist movement that had a greater impact in the outbreak of war than Slavic groups in the Balkans with Pan Slavism. Pan slavism was the belief that the Slavic peoples of eastern Europe should have their own nation, and that they were a powerful force in the region that could be reckoned with.