Abstract: Intimate partner violence (IPV) and nonpartner aggression are common among military veterans, yet the extent of overlap between them remains unknown. The current study examined this overlap and the effect of Strength at Home (SAH) on nonpartner aggression and anger in a sample of men veterans. Participants (N = 135) completed a baseline assessment, were randomly assigned to SAH or treatment-as-usual (TAU), and completed a 3- and 6-month follow-up. IPV and nonpartner aggression use were uncorrelated. Nonpartner aggression was correlated with anger, posttraumatic stress disorder, and depression, while IPV was correlated with anger. SAH did not demonstrate an effect on nonpartner aggression. Participants in the SAH condition demonstrated a significant decrease in anger, while participants in TAU did not. Our findings suggest a little overlap between IPV and nonpartner aggression use in veterans.