This paper analyzes and compares the effectiveness of the correctional systems in the United States of America and Europe, with some emphasis on Scandinavia. To make the comparison, I looked at previous research on the correctional systems in the United States and Europe. I reviewed articles from PsycInfo EBSCO Host and Google Scholar. The main points of comparison used are recidivism rates and rehabilitation services offered by the prisons in different countries. The results of this comparison show that countries that offer better rehabilitation services in the prison system, like Scandinavian countries, have lower recidivism rates than the United States, where the focus is on punishment rather than rehabilitation. Research has been done before on countries individually, but there is not enough research comparing correctional systems among nations. The purpose of this paper was to expand the available literature comparing these different correctional systems.