narrow trench dug in the ground with sandbags to protect soldiers from enemy attacks

arsiero attacks bag bags barricade battlefield burlap sack defend defense dig ditch dug dugout enemy entrenched filled foxhole frontline ground gunny shoe hessian hill hilly italy jute military mount outdoorne pasubio prima guerra mondiale protection restraint sacking sandbag sandbags security shelter soldiers tonezza trench trenches trincea vicenza war warfare cimone