States                 CIS                                                             Collective Security Treaty

Armenia             Member since 21 December 1991      Member since 15 May 1992
Azerbaijan         Member since 24 September 1993     Member from 24 September 1993 until April 1999
Belarus               Member since 8 December 1991     
Georgia              Member since 9 December 1993        Member from 9 December 1993 until April 1999
Kazakhstan        Member since 21 December 1991     Member since 15 May 1992
Kyrgyzstan         Member since 21 December 1991      Member since 15 May 1992
Russia                Member since 8 December 1991        Member since 15 May 1992
Moldova             Member since 21 December 1991      Not Member
Tajikistan            Member since 21 December 1991      Member since 15 May 1992
Turkmenistan     Member since 21 December 1991     Not Member
Ukraine               Member since 8 December 1991        Not Member
Uzbekistan         Member since 21 December 1991     Member from 15 May 1992 until April 1999