Nusa Dua (Indonesia) (AFP) – US Treasury Secretary Janet Yellen heaped pressure on Russia on Monday ahead of the G20 summit in Indonesia, saying the best way to end world economic tumult was to stop the Ukraine war. “Ending Russia’s war is a moral imperative and the single best thing we can do for the global economy,” Yellen told reporters as she met French counterpart Bruno Le Maire in Nusa Dua, on the resort island of Bali. High fuel and food prices are among the top issues set to be discussed at the summit and few G20 countries have escaped the economic pain. Yellen will hope to build dipl…