The Organisation of Eastern Caribbean States celebrates the milestone 45th Anniversary under the theme “One Vision, One Voice: Navigating Challenges, Shaping Our Future.” Since the signing of the Treaty of Basseterre in 1981, the OECS has stood as a symbol of unity, and this year, we highlight how this defines our response to threats and scope for the future. We are speaking with one voice, and shaping a future grounded in solidarity.

On June 18, 1981, the representatives of the Governments of the West Indies Associated States Council of Ministers signed the Treaty of Basseterre establishing the successor to the Council - the Organisation of Eastern Caribbean States. Since then, the OECS along with multiple regional and international partners have mobilized efforts to advance regional integration in the Eastern Caribbean which resulted in major key achievements as follows:

All activities hosted as part of the 45th Anniversary of the OECS are coordinated by the Anniversary Committee. For more information contact: