The document discusses working with veterans suffering from mental health problems. It notes that mental health issues in veterans can arise from pre-service vulnerabilities, military life, and adjusting to civilian life. Common mental health problems in veterans include depression, anxiety, PTSD, alcohol and drug issues, and personality problems. Combat Stress is the largest mental health charity in the UK for veterans, providing clinical outreach services and bespoke inpatient programs to address veterans' complex biopsychosocial needs. Treatment involves assessment, stabilization, trauma-focused therapies, and rehabilitation. Major challenges include complex trauma, co-occurring substance use, forensic cases, and the needs of aging and in-service family populations.