Few people alive today had direct experience of the First World War, and yet it seems embedded in the collective consciousness of the combatant nations as a warning to future generations of the futility of military conflict. Our awareness of the terror, loneliness and desperate hope endured by the men who fought this war we owe to the quality of the art that came out of it, not least the poetry. Despite the passage of time, its ability to move and inspire us remains undimmed, as this superb new compilation richly demonstrates.