Where did soldiers spend most of their time during ww1?
The bulk of fighting for active soldiers during WW1 for both sides was spent mostly in the trenches. The length of the trenches put up by both the Allies and the German forces on the Western Front in late 1914 ran from the Swiss border in the south all the way up to the French& Belgian coast in the north. This necessitated the manning by millions of soldiers, rain or shine, in deep mud or snow, in any weather, for more than 4 murderous years.