In 2020, the UK-based Monte San Martino Trust and the Istituto Nazionale Ferruccio Parri decided to collaborate on telling the story of the Allied prisoners of the Second World War in Italy. A project to map the prison camps was readily agreed and it was decided to include this in a broader framework, which would systemise the studies carried out in the past and present new evidence on the overall theme of the Allied presence in Italy from 1939 to 1947.