This chapter analyzes the Three Brotherhood Alliance (3BA) not merely as a military coalition but as a project of competitive governance in Myanmar’s borderlands. It situates the alliance within the broader transition from a former political-economic system to a digitalized economy, one that has eroded state legitimacy and created space for governance innovation by ethnic armed organizations. The 3BA’s strength lies in its capacity to institutionalize power: the Arakan Army has established a parallel government in Rakhine, while the MNDAA and TNLA oversee taxation, justice, and resource regulation in Shan State. These practices reflect proto-state capacities that extend beyond military engagement. Nationalism, often regarded solely as a mobilizing force, also functions as a tool of governance, legitimizing authority by framing territorial control as a “return to the homeland.” By reframing the 3BA as a coalition of governors rather than combatants, the chapter demonstrates how alternative governance structures, resource-sharing arrangements, and cross-ethnic coordination support both the alliance’s resilience and its capacity to challenge the Myanmar military. Operation 1027 thus emerges not only as a significant military success but also as the outcome of sustained governance consolidation by the alliance.