What was the first war of the twentieth century?

The first war of the twentieth century is recognized as World War I. This conflict began in 1914 and lasted until 1918, involving many of the world's great powers at the time. The war was marked by significant changes in warfare, with the introduction of trench warfare and new military technologies. It was a pivotal event that reshaped political boundaries and had profound effects on world history, leading to subsequent events such as the rise of fascism and World War II. Understanding that World War I was the first major global conflict of the century is essential for grasping the geopolitical landscape of the era and the resulting consequences for nations and societies around the globe.