YEAR 9 : WORLD WAR I: Home

World War I (1914-1918) was a conflict that involved more countries and caused greater destruction than any other war up to its time. Following an assassination in Bosnia-Herzegovina, a system of military alliances (agreements) plunged the main European powers into a war that lasted four years. The war took the lives of about 9 million troops and more than 6 million civilians. World War I is sometimes called the Great War.

https://www.worldbookonline.com/student-new/#/article/home/ar610440