OBJECTIVE: We sought to examine the association of risk behaviors (i.e., risk perception, risk-taking/impulsivity, and sensation-seeking) and mental health symptomatology (depression, posttraumatic stress disorder [PTSD], anxiety and anger) on problematic alcohol use (alcohol problems and frequent heavy drinking [FHD]) among United States Army Reserve and National Guard (USAR/NG) soldiers. METHODS: Cross-sectional data ( RESULTS: Greater risk perception was associated with a lower likelihood of alcohol problems ( CONCLUSIONS: This study assesses the combined associations of risk behaviors and mental health on alcohol use among USAR/NG soldiers. USAR/NG soldiers may benefit from alcohol use interventions that target risk-taking/impulsivity, sensation-seeking behaviors, and mental health symptomatology such as depression, PTSD, and anxiety.