This study uses Swedish register data to assess the impact of war in the home country on the individual likelihood of registered violent crime among young male immigrants in Stockholm, Sweden. War in the home country during a migrant’s residence is significantly related to a higher likelihood of registration for a violent crime. However, these results were not sustained in a sensitivity analysis, which considered serious property crime. Analysis of the history of war in the home country produces effects opposite to those predicted, with more years of war reducing the likelihood of violent crime. These findings indicate that war is capturing other factors, within the home or the receiving country, that may be related to violent crime.