War! Huh! What is it good for? Must all war plays be anti-war?

Times Online: "On my ninth birthday our family of peace-loving British communists trooped off to see the new play at the Theatre Royal Stratford East. It was a thing to marvel at. Living, as we thought, under the shadow of the H-bomb (a shadow to which many other Britons seemed to us to be absurdly indifferent), the musical Oh! What a Lovely War promised mass conversions to the cause of peace. Its use of popular songs, its subversion of jingoistic tropes, its cast of careless generals, callous statesmen and war profiteers jollying the poor bloody workers into the hell of the trenches were worth a hundred demonstrations and a million leaflets. We had culture on our side."