Why did soldiers keep fighting in WWI, even when it became clear they were marching into slaughter?

Why did they keep going?
Why, after seeing entire regiments mowed down in minutes, after watching friends disintegrate under artillery, after spending weeks in flooded trenches with rats chewing on corpsesโwhy did they keep fighting?
Because World War I wasn’t just a war. It was a system. A machine. And once you were inside of it, there was no clear way out.











