Русско-англо-русский юридический словарь

"In obtaining information constituting a state secret in regard to the Russian Federation various international organizations may act in their own interests or for the benefit of secret services of various foreign countries," a document explaining the proposed changes read. (Reuters)

The European Economic Community (EEC) was an international organization created by the Treaty of Rome of 1957.

Its aim was to bring about economic integration, including a common market, among its six founding members: Belgium, France, Italy, Luxembourg, the Netherlands and West Germany. The EEC was also known as the Common Market in the English-speaking world and sometimes referred to as the European Community even before it was officially renamed as such in 1993. (Wikipedia)

A treaty is an agreement under international law entered into by actors in international law, namely sovereign states and international organizations. A treaty may also be known as an (international) agreement, protocol, covenant, convention, pact, or exchange of letters, among other terms. Regardless of terminology, all of these forms of agreements are, under international law, equally considered treaties and the rules are the same. (Wikipedia)

An ambassador is an official envoy, especially a highest ranking diplomat who represents a state and is usually accredited to another sovereign state, or to an international organization as the resident representative of their own government or sovereign or appointed for a special and often temporary diplomatic assignment. (Wikipedia)