Summit "G20": that to expect Russian Federation?

First of all, what such "twenty"? For conversations on "the global world" and on "greatness" of group, "carrying out world politics" in the status almost "the world government", almost forgot, from where it undertook. Let's refresh memory. "G20" appeared in 1999, and it worked then in a format of heads of the Central Banks and ministers of finance. After an uncontrollable Asian collapse (1998) someone decided to make secure on the future and to make a bookmark for "manual" crisis managements. Since then "twenty" worked in a "sleeping" mode up to 2008 when burst new crisis...