The chapter examines the representation of Cold War nuclear threat and international politics in The Little Girls. The triangular relationship of the three girls over time, from the burying of the box before the First World War until the Cold War setting in 1962, plays out a Macbeth-inflected version of the international relations governing the nuclear world. Bowen had registered the shape and dangers of those relations at the Paris Peace Conference in 1946, which she attended with her lover, the Canadian diplomat Charles Ritchie. The rule of three governing the girls’ friendship and experience of war trauma matches the three geopolitical points of the triangle of Cold War politics – the West, the communist bloc, the non-aligned nations – as well as mimicking forms of international diplomacy, two conflicting parties, and a third-party mediator.