They were sent to the Western Front which is a series of trenches that went from the Belgian coast to the Alps. They were taken by 7th class transport which was basically some cattle-trucks with a...
The soldiers were not in the trenches all the time because they had to fight the enemies,defeat themselves from getting attacked and also help the wounded.
Go and dig a six foot hole in your garden, stick your head up over the top, what can you see ? Now think about every time you stick your head up there is a good chance you are going to get it shot...