Armenian President Serzh Sargsyan will attend the jubilee summit of the Commonwealth of Independent States (CIS) to be held in Dushanbe, Tajikistan, in September 2011, to mark the 20th anniversary of CIS formation.

Presidents of Russia, Kazakhstan, Kyrgyzstan, Moldova, Azerbaijan and Turkmenistan also confirmed their participation. Leaders of Belarus, Uzbekistan and Ukraine have not responded to invitation yet, Interfax Kazakhstan reported.