This preliminary report concerning the neuropsychiatric casualties encountered during the Tunisian Campaign was prepared by the authors under the stress and pressure of conditions in the theater of operations. It is reproduced with a minimum of editing in order to make the information available promptly to medical officers in all theaters. It is believed that this document will become a milestone in psychiatric literature, not only because of its practical value in relation to the prevention and treatment of war neuroses, but also because of the richness of the case history material presented. The detailed accounts of rehabilitation of the personality under the authors' psychotherapeutic method, "narcosynthesis", are unique and of great interest from the practical and theoretical viewpoints. -- Foreword.