This volume provides several perspectives that help practitioners, advocates, and policymakers understand the impact of historical and recent wars on U.S. Military veterans. The chapters address newly recognized conditions, such as moral injury, military sexual trauma, and remote combat trauma as precursors to more serious diagnosable mental health disorders with the goal of addressing how these conditions can be identified and mitigated in future combat operations. The chapters also provide new insights on calculating the costs of wars in terms of dollars spent on treating mental health conditions, the intergenerational impact of combat trauma on families and future generations, and involvement in the criminal justice system of those who do not receive treatment due to discharge characterizations from military misconduct.