Exchange of letters between the Kingdom of the Netherlands, in respect of Curaçao, and the United Nations Educational, Scientific and Cultural Organization (UNESCO) constituting an Agreement concerning the Nineteenth Session of the Intergovernmental Coordination Group for the Tsunami and other Coastal Hazards Warning System for the Caribbean and Adjacent Regions (ICG/CARIBE EWS-XIX), in Willemstad, Curaçao, from 20 to 24 April 2026