War conflicts and violence zones inflict devastating physical, social, and psychological consequences on affected populations. This paper explores the mental health impacts on civilians and combatants exposed to armed conflict, forced displacement, and chronic violence. Post-traumatic stress disorder (PTSD), depression, anxiety, and substance abuse are highly prevalent in these environments. Vulnerable populations, including children, women, and the elderly, face elevated risks. Limited access to mental health services exacerbates suffering, particularly in low-resource settings. Evidence-based interventions—ranging from trauma-informed care to community-based psychosocial support—are urgently needed to address this growing crisis. International collaboration is essential to scale mental health services in conflict-affected areas and integrate mental health into emergency response frameworks.