Will is severely wounded, and lies in a shell crater with a German soldier.

Timmermann had 15 men with him in two shell craters and was waiting for reinforcements.

"Unless he's hiding in what we might call a shell crater."

Sometimes there were duckboards around the lips of the huge shell craters.

They dived into shell craters, pulled themselves out and went forward again.

A 'Raum got out of a shell crater and stumbled toward them.

The next day he rescued one of his men from a shell crater and was shot in the back by a sniper.

Overgrown shell craters and trenches can still be made out.

I've slept in shell craters and been grateful for them.

Sgt. Hilton recognized that the machine gun fire was coming from a shell crater just ahead of them.