Causes of WW1 There were many leading causes that triggered WW1. WW1 took place between the times of 1914-1918. It included 9 different countries and had 2 alliances. Austro-Hungary, Germany, and Italy were known as the Triple Alliance while Great Britain, France and Russia were known as the Triple Entente. It was a total war and it was estimated that around 9 million soldiers had died fighting for their country. Most men died fighting or defending their entrenched Frontlines that were so small they could barely turn around without hitting another soldier. Imperialism and Alliances were also a main cause of WW1. Imperialism had an important role in sparking WW1. Each country wanted to protect and defend the land they had won and retained
