Waste disposal is one of the main issues of today's world in terms of environmental protection, sustainable development and economic growth. One of the less researched subjects is the security aspect of waste disposal and management. This topic includes environmental, political, and economic aspects. This paper examines the approaches to waste disposal in regard of hazardous waste management and disposal, nuclear waste management and disposal, etc. and their impact on complex issues of national, regional, and global security, and possible conflict generation. The paper includes the analysis of the interviews with security and waste management experts in the Republic of Serbia and United Arab Emirates and presents a model for the approach to waste management and disposal that includes the security aspect.