But the biggest causes of homelessness among veterans are joblessness and poverty, lack of low cost housing, substance abuse (drug abuse or alcoholism), and disabilities caused from physical injuries or mental illness. As a result, illness’ like PTSD (Post Traumatic Stress Disorder) are left untreated. Additionally, some military occupations and training are not always transferable to the civilian workforce. Placing veterans at a disadvantage when competing for employment outside of the military. Lack of family and social support networks are also influencing factors to homeless