The National Health Assembly (NHA) in Thailand demonstrates how civil society, researchers and Government (the triangle) can work together to address the challenges of UHC design and implementation (the mountain). Founded in 2008, the core principle of the NHA is to bring together the three groups to combine top-down and bottom-up approaches to achieve progress and reform. As such, it has been a significant vehicle for pushing the UHC agenda forward. After consultation with all three sectors, any Thai citizen can request a topic for debate. By increasing the legitimacy and ownership of policy reforms, Thailand has improved UHC implementation and triggered a lasting change.