This study investigates the creation of the Security Force Assistance Brigades (SFAB) and analyzes how the Army can provide effective support to the unit's mission. This is significant due to the absence of current academic research pertaining to the SFAB. The intent of this research is to identify the sustainment challenges that the SFAB may encounter and present possible solutions for the Army to overcome them. In order to understand how to provide effective support, this study explains the SFAB mission, force structure, and the operational environments where SFA forces will doctrinally be employed. A qualitative research methodology is used to analyze this data through a collective case study design. The two case studies selected for this research represent the two types of operational environments where the SFAB will be employed and uses an embedded analysis to identify the sustainment challenges in each. The end result is a comprehensive understanding of the SFAB, the sustainment challenges that the unit will encounter, and possible solutions for overcoming them.