In a series of letters written during the later phase of the First World War, men who suffered imprisonment for adhering to their pacifist beliefs describe their how they worked out their sentences in difficult and cruel surroundings. When conscription came into force in Great Britain in 1917, Corder Catchpole was Adjutant of the Friends’ Ambulance Unit in France. He, along with other members of the FAU chose to return to England to show solidarity with those whose conscience dictated they should resist the forced militarisation of men imposed by the new Act.