Cuba has been a member of the United Nations since the organization's inception. On September 24, 1945, Cuba joined as one of the original 51 founding members, signing the UN Charter in San Francisco.
As a founding member, Cuba participated in the early shaping of the UN's principles and structures. Over the decades, Cuba has used its UN platform to advocate for decolonization, development, and sovereignty of smaller nations, often aligning with the Non-Aligned Movement and the Group of 77.
Today, Cuba maintains an active diplomatic presence at UN headquarters in New York and participates in various specialized agencies, contributing to debates on health, education, climate change, and human rights.