Russia and China, meanwhile, have declared a “no limits” partnership of their own. And the economic bloc of Brazil, Russia, India, China and South Africa known as BRICS is trying to increase its use of local currencies instead of the U.S. dollar. Also likely to be seen at the G20 summit is budding closeness of U.S.-India ties in light of a shared concern about China’s military and economic assertiveness. Treasury Secretary Janet Yellen is facing growing skepticism from some leading rich and developing nations as the residual impact of sanctions against Russia is deepening divisions among the Group of 20 countries. Why has the United States never sanctioned despite of committing atrocities in libya, Iraq etc ?