Armenia, Belarus, Kazakhstan, Kyrgyzstan and Russia are involved in the establishment of the Eurasian Economic Union (EAEU). The creation of the integration bloc was preceded by various documents that defined the approaches of individual countries in the post-Soviet area to interaction with their neighbors. The documents laid the foundation for subsequent interaction between the former Soviet republics. Having signed the treaty on the formation of the EAEU, each of the states adopted different documents – bilateral and multilateral agreements, which define their strategies of cooperation within the framework of the integration platform. It helped forming a common legal field for further rapprochement. Special attention is paid to the key documents that reflect the positions of the EAEU member states. Each of the EAEU countries has adopted a sufficient number of documents that highlight the policy of individual countries on the issue of integration. Such strategic papers also reveal the nature of cooperation between the countries of the post-Soviet area. The article analyses how Russia’s partners in the EAEU access the goals and objectives of integration in Eurasia. The paper also evaluates the prospects for their further cooperation among themselves and with other actors beyond the post-Soviet area. This is a separate group of states that directly or indirectly influence the Eurasian integration. The main attention is paid to the evolution of ideas and provisions in the documents of the EAEU members with regard to their position within the framework of the bloc, their analysis was carried out.