A treaty aiming for the establishment of the EAEU was signed on 29 May 2014 by the leaders of Belarus, Kazakhstan and Russia, and came into force on 1 January 2015
Treaties aiming for Armenia's 10 October 2014 and came into force on 2 January 2015.
Kyrgyzstan's accession to the Eurasian Economic Union were signed on 23 December 2014, and came into effect on 12 August 2015.