Social workers, both in the community and within the Veterans Administration (VA), provide a comprehensive range of services to a broad demographic of veterans. Service provision for veterans can address a wide range of issues including aging, homelessness, reintegration, sexual assault, physical and psychological war injuries, and substance abuse. Research-informed practice allows social workers to effectively address the special needs of veterans. This chapter discusses the landscape of social work practice with veterans and the interconnectedness of research, policy, and service delivery. It offers an introduction to working with veterans from a practice, policy, and research perspective. Social workers should have a working knowledge of military culture, the impact of deployment, subsequent redeployments, reintegration, and adjustment to civilian life. It is essential for social workers to have knowledge about the physical and psychological aspects of trauma, particularly war-related trauma.