The First World War began in the summer of 1914, shortly after the assassination of Austria’s Archduke, Franz Ferdinand, and lasted more than four years, ending in 1918. The Great War left more than 20 million soldiers dead and 21 million more wounded, which can be attributed to trench warfare and the number of countries involved in the war. For aspiring historians, understanding the causes of World War I are equally as important as understanding the conflict’s devastating effects. Though the assassination of Archduke Ferdinand was the direct precipitating event leading to the declaration of war, there were many other factors that also played a role in leading up to World War I (WWI). European Expansionism In the 1900s, several European nations had empires across the globe, where they had control over vast swaths of lands. Prior to World War I, the British and French Empires were the world’s most powerful, colonizing regions like India, modern-day Vietnam and West a...