Where was World War 1 fought?

World War I was mainly fought in Europe, especially northeastern France, Belgium, northeastern Italy, and present-day Poland, Serbia, and Romania.

There were also naval battles in the Mediterranean and the North Sea. However, there was some serious fighting in the Middle East (Mesopotamia, Palestine, Armenia, and the Gallipoli Penninsula in Turkey) and some short fighting in the German colonies in Africa(present-day Cameroon, Togo, Tanzania, and Namibia), some naval battles near China (especially the German-influenced part of Tsingtao), and some fighting in the German territories in the Pacific (Northern New Guinea and the Mariana Islands).

Answer1914-1918, Europe