UNAIDS, or the Joint United Nations Programme on HIV/AIDS, is a global organization that leads and inspires the world to achieve universal access to HIV prevention, treatment, care, and support. Established in 1996, UNAIDS coordinates efforts among various UN agencies, governments, and civil society to combat the spread of HIV/AIDS and ensure effective responses to the epidemic. It plays a crucial role in shaping policies, providing data and resources, and advocating for the rights of those affected by HIV/AIDS.