Where were the front lines in World War 1?

The front lines in World War I primarily extended across Europe, with the most notable being the Western Front, which ran from the North Sea through Belgium and France to the Swiss border. This front was characterized by extensive trench warfare, where both the Allies and Central Powers faced off in a stalemate. Additionally, the Eastern Front stretched from the Baltic Sea to the Black Sea, involving battles between Germany, Austria-Hungary, and Russia. Other fronts included the Italian Front and various campaigns in the Middle East and Africa.