sentences:  In 2000 IUDZG was renamed as WAZA to reflect a more modern institution working together at a global level, to build cooperative approaches to common needs, to tackle common issues, to share information and knowledge, and represent this community in other international bodies such as the World Conservation Union (IUCN) or at Conferences of the Parties to global Conventions, such as CITES (the Convention on International Trade in Endangered Species of Wild Fauna and Flora), CBD (Convention on Biological Diversity) or CMS (Convention on Migrating Species).Between IUCN and CMS or the secretariat of the Ramsar Convention on Wetlands, there even exist formal Memoranda of Understanding (MoUs).When a number of regional zoo and aquarium associations were founded in different parts of the world (such as AZA, EAZA, BIAZA, PAAZAB, ARAZPA, AMACZOOA, JAZA, SEAZA) the IUDZG had to rethink its structure and functions.