WWI (World War I) was a global conflict that lasted from 1914 to 1918, involving major world powers. It was characterized by trench warfare, new weapons technologies, and enormous loss of life.
Related terms
Treaty of Versailles: The peace treaty signed at the end of World War I that imposed harsh conditions on Germany and its allies.
League of Nations: An intergovernmental organization founded after World War I with the aim of maintaining peace and preventing future conflicts.
Total War: A concept referring to the complete mobilization and involvement of all resources (economy, civilians) into a war effort.