Voluntary Aid Detachments

The Voluntary Aid Detachments were the wartime organization in which Agatha Christie served during the First World War. Their clearest documented connection to her career is biographical: she wrote her first novel, The Mysterious Affair at Styles, toward the end of the war, during her service with the Detachments.

Wartime Service and First Novel

Christie’s service provides the wartime context for the composition of The Mysterious Affair at Styles. The book introduced Hercule Poirot, the Belgian detective who became her best-known recurring investigator. The evidence links the Detachments to Christie’s life and to the period in which she began her fiction, but does not describe her particular duties or the organization’s structure.

Publication and Literary Significance

After the novel had been rejected by several publishers, The Mysterious Affair at Styles appeared in 1920 under The Bodley Head. The Detachments therefore belong to the biographical background of Christie’s emergence as a novelist, rather than to the novel’s fictional setting or its plot. The available account establishes the chronology of wartime service, composition near the war’s end, and eventual publication; it does not claim that the service itself caused her turn to crime writing.