NURSES, AS THE largest health profession, are ubiquitous. They practice everywhere-in hospitals, patient and family homes, churches, prisons, homeless shelters, longterm care facilities, ambulatory care settings, community health centers, schools, camps, prisons, and concert halls-most everywhere people are found. Nurses provide care across the continuum from preventive to end of life. Nurses provide care for people who are well, people who are dying, and people with any and all acute and chronic illnesses. Nurses care for individuals, families, communities, and populations through their direct care and advocacy roles. Thus, to prevent adverse childhood experiences (ACEs) and to reduce their negative effects, we must engage nurses as they "are already on the front lines in the battle against the negative effects of toxic stress." 1 If we are to engage nurses in the battle against the toxic stress associated with ACEs in patients and clients, it is essential to understand the scope of the problem among nurses, raise their understanding about how ACEs impact them, and assure they have the knowledge, skills, and attitudes (KSAs) to join the battle and lead the war to prevent and mitigate the impact of ACEs. Nurses are not exempt from having ACEs and suffering the consequences. Although there is little information about the prevalence of ACEs among nurses, we can assume that rates of ACEs are at least comparable to those in the general population. Some studies suggest that ACEs may be more common among nurses and other health care professionals than among the general population. 2-4 Nurses (and other health care providers) who have experienced ACEs may, like their patients, experience physical, social, emotional, and behavioral sequelae. Nurses suffering from such health problems are less likely to be able to perform as effectively as their colleagues who have not experienced ACEs. Research suggests that nursing work, given its often stressful nature, exacerbates the stress of ACEs and that ACEs may negatively impact performance in the work setting. To fully participate in prevention and mitigation of adverse childhood events, nurses must play a major role with individuals, organizations, and communities as well