 In consequence of his literary experimentation, his studies went neglected and he began to edit and contribute to expressionist magazines, such as "Die Aktion" and his own work, the short lived magazine "Revolution", in which he and his colleagues issued their literary manifesto.In August 1914 the First World War erupted and Leybold was immediately called up as an active reservist.Less than a month later, Leybold was seriously wounded during operations near Namur and was evacuated to a casualty clearing hospital.