This analytical essay explores the concepts of horizontal inequality and weak states, their causes, effects, and implications for society and global security. It discusses the causes and effects of horizontal inequality, such as discrimination and unequal access to public goods, and the impact on mental health and political dynamics. It also examines the characteristics and challenges of weak or fragile states, including lack of government control, vulnerability to conflicts and violence, and the role in hosting terrorist activities. Additionally, the essay explores the interplay between greed and grievance as factors contributing to conflicts and violence. Overall, it highlights the importance of addressing horizontal inequality and strengthening weak states for promoting peace and stability.