IUCN is an international organization working in the field of nature conservation and sustainable use of natural resources. It was founded in 1948, has over 1,400 members, and publishes the IUCN Red List of Threatened Species. The IUCN Programme marks the culmination of many years of deliberation across the Union. Adopted by democratic vote at the IUCN World Conservation Congress in Marseille, the Nature 2030 IUCN Programme, for the first time, sets its ambition over ten years. It is a call for mobilisation to our Members, Commissions and Secretariat. This longer-term outlook aligns with the United Nations 2030 Agenda for Sustainable Development and the post-2020 global biodiversity framework. The International Union for Conservation of Nature ( IUCN ) is a vital global organisation that plays a crucial role in safeguarding the natural world. Its work on biodiversity conservation, protected areas, and sustainable development has had a significant impact on global efforts to protect our planet. This article aims to provide a comprehensive overview of the International Union for Conservation of Nature ( IUCN ), its objectives, functions, key initiatives and other related aspects. International Union for Conservation of Nature ( IUCN ), network of environmental organizations founded as the International Union for the Protection of Nature in October 1948 in Fontainebleau, France, to promote nature conservation and the ecologically sustainable use of natural resources. It