This study aims to examine the theoretical framework of the concept of a 'failed state', its characteristics and its main indicators in accordance with international standards and the application of these standards to Afghanistan. The thesis examines the causes and consequences of state failure in Afghanistan, and its impact on regional and global security. It argues that state failure in Afghanistan is not only a result of the Taliban's takeover, but also of the international community's policies and actions that have undermined the legitimacy, capacity and resilience of the Afghan state. It analyzes how state failure in Afghanistan has created a humanitarian crisis, a security vacuum, and a potential haven for terrorist groups that threaten the stability of neighboring countries and beyond. It also explores the challenges and opportunities for the international community to engage with the Taliban and support a political settlement that can prevent further state collapse and violence. The thesis draws on various sources of data, including academic literature, official documents, and media reports.