But David Grindley's excellent revival, 75 years to the day since the play first opened, confirms otherwise. Sherriff's study of a regiment nervously awaiting a savage German raid is as much about the pressure from within as from without. Politically ambivalent, it is profoundly sympathetic to the camaraderie of warfare, while exposing the extent to which being seen to fail in front of your fellow men is almost more terrifying than going over the top.