The Union World Conference on Lung Health is the world’s largest gathering of clinicians and public health workers, health programme managers, policymakers, researchers and advocates working to end the suffering caused by lung disease, with a focus specifically on the challenges faced by low-and lower-middle income populations. Of the 10 million people who die each year from lung diseases, some 80 percent live in these resource-limited settings. Organising international conferences on tuberculosis (TB) and related subjects has been a core activity of The Union since its founding in 1920.