Associations among sociodemographic characteristics, mood, trauma-related experiences, and suicidal behaviors were examined with archival data from Army National Guard (ARNG) soldiers that included suicide cases combined with annual random samples of nonsuicide cases for calendar years 2007-2011 (N = 5,390); postdeployed ARNG soldiers (N = 4,567); and home-stationed ARNG soldiers (N = 15,597). Suicidal behavior was associated with demographic characteristics (e.g., young age, male, and White) and loss of a significant other; childhood abuse experiences moderated the relationship between current stressors and suicidal behavior; suicidal behavior appeared to be consistent across the deployment cycle.Suicide is a pressing problem for senior military leaders. Suicide rates for the U.S. military have been lower than age-matched civilian rates since World War II (Cassimatis & Rothberg, 1997). However, recent research suggest that military personnel involved in ground operations may be at higher risk for behavioral health problems including suicidal behavior (Department of Army, 2008). Suicide rates for the Army climbed from about 13.