An informal meeting of CIS leaders dedicated to the 20th anniversary of the Commonwealth will be held in Moscow on Dec 20, the CIS Executive Committee's official website reported.

The CIS was established in late 1991 after the Soviet Union collapsed in the wake of the global geopolitical changes. The Commonwealth contributed to addressing complex problems associated with the collapse of the USSR and to the formation of independent states as well as preservation and further development of the historical ties of the post-Soviet space programme.