Answer :
The soldiers living in in the trenches "lived with the dead" because during war soldiers would use trenches as cover and to have a safer place to shoot from but the trenches were where a lot of soldiers died so with them dying in the trenches it would explain why the soldiers that lived in the trenches would "live with the dead". Hope this helps!
the way that the soldier is living is by making the dead seem less dead
They dressed them up and put make up unto them.
Not only dead, they also read them stotries such as ted lavener's tranquilizer use or curt lemon's trick or treating. But eventually , they let the rats eat them to prevent the dead from spreading deseaes