Regional organisation in the context of "Association of Southeast Asian Nations"

The European Economic Community (EEC) was a regional organisation created by the Treaty of Rome of 1957, aiming to foster economic integration among its member states. It was subsequently renamed the European Community (EC) upon becoming integrated into the first pillar of the newly formed European Union (EU) in 1993. In the popular language, the singular European Community was sometimes inaccurately used in the wider sense of the plural European Communities, in spite of the latter designation covering all the three constituent entities of the first pillar. The EEC was also known as the European Common Market (ECM) in the English-speaking countries, and sometimes referred to as the European Community even before it was officially renamed as such in 1993. In 2009, the EC formally ceased to exist and its institutions were directly absorbed by the EU. This made the Union the formal successor institution of the Community.

The Community's initial aim was to bring about economic integration, including a common market and customs union, among its six founding members: Belgium, France, Italy, Luxembourg, the Netherlands and West Germany. It gained a common set of institutions along with the European Coal and Steel Community (ECSC) and the European Atomic Energy Community (EURATOM) as one of the European Communities under the 1965 Merger Treaty (Treaty of Brussels). In 1993, a complete single market was achieved, known as the internal market, which allowed for the free movement of goods, capital, services, and people within the EEC. In 1994 the internal market was formalised by the EEA agreement. This agreement also extended the internal market to include most of the member states of the European Free Trade Association, forming the European Economic Area, which encompasses 15 countries.

The Eurasian Economic Community (EAEC or EurAsEC) was a regional organisation between 2000 and 2014 which aimed for the economic integration of its member states. The organisation originated from the Commonwealth of Independent States (CIS) on 29 March 1996, with the treaty on the establishment of the Eurasian Economic Community signed on 10 October 2000 in Kazakhstan's capital Astana by Presidents Alexander Lukashenko of Belarus, Nursultan Nazarbayev of Kazakhstan, Askar Akayev of Kyrgyzstan, Vladimir Putin of Russia, and Emomali Rahmon of Tajikistan. Uzbekistan joined the community on 7 October 2005, but later withdrew on 16 October 2008.

During the 14 years, the EAEC implemented a number of economic policies to unify the community. The Customs Union of Belarus, Kazakhstan, and Russia was formed on 1 January 2010, and later renamed the Eurasian Customs Union. The four freedoms of movement modelled after the European Union (goods, capital, services, and people) were fully implemented by 25 January 2012, with the formation of the Eurasian Economic Space.