Psychological Trauma: Theory, Research, Practice, and Policy (Jul 2, 2018): No Pagination Specified Objective: Although killing in combat is associated with negative mental health outcomes and hazardous alcohol use, mechanisms that underlie this risk are not well understood. To our knowledge, this present brief report is the first to use mediation analysis to examine associations between killing in combat, distinct facets of rumination (problem-focused thoughts, counterfactual thinking, repetitive thoughts, and anticipatory thoughts), and negative mental health outcomes (i.e., depression, anxiety. To read the full article, log in using your NHS OpenAthens details., PTSD, suicidality) and hazardous alcohol use.