“…Thus, other variables may need to be considered in the future studies, such as other traumas including natural disasters, accidents, or disease (Infurna, Gerstorf, & Ram, 2013; Knight, Gatz, Heller, & Bengtson, 2000), smoking (Byers et al, 2012), and alcohol use (Brennan, SooHoo, Lemke, & Schutte, 2016) that can be associated with poorer mental health during adulthood. Moreover, research shows that socioeconomic factors such as income (McDaniel, Thomas, Albright, Fletcher, & Shields, 2018) and personal characteristics such as optimism (Thomas, Britt, Odle-Dusseau, & Bliese, 2011) influenced the effect of combat exposure on mental health outcomes. These variables should be taken into consideration in future studies.…”