The humanitarian crisis in Northeast Nigeria, driven by conflict, climate-related shocks, and food insecurity, has created immense challenges for the health sector in Borno, Adamawa, and Yobe (BAY) States. About 1.8 million people remain displaced(1), with inadequate access to healthcare services and persistent disease outbreaks, malnutrition, and mental health challenges. This strategy outlines a comprehensive localization approach to strengthen the health sector's capacity by empowering local and national actors (L/NAs) include state and local government structures to lead humanitarian responses at respective levels with minimal oversight functions. The localization strategy aligns with the global commitments of the Grand Bargain 2.0, prioritizing equitable partnerships, capacity sharing, and resource mobilization to enhance sustainable, community-owned health systems(2). Key components include increasing the visibility and meaningful participation of L/NAs in health sector coordination, promoting direct funding to local actors, and addressing systemic barriers such as governance, leadership, capacity, and resource gaps. The global humanitarian community made a commitment, as reflected in the Grand Bargain 2.0, to localization (3) to improve the efficiency and effectiveness of humanitarian aid. A key priority of this commitment is to empower local actors to take a leading role in delivering assistance, ultimately leading to better outcomes for affected communities. A localized health response, strengthened by partnerships, can achieve several key outcomes, including rapid response and access, community acceptance, cost-effectiveness, links to long-term development, and increased accountability to the community. Localization in health matters because it ensures sustainable and community-owned health responses.