The challenge for the G-20 leaders, representing the world’s largest economies, is how to ratchet down the tensions and calm nervous markets. So far, they’ve shown little sign of being able to achieve unity on the conflict.

A Russian lawmaker calls President Biden's decision to let Ukraine fire U.S. missiles deep into Russia a "very big step toward the beginning" of a third world war.

President Biden approved Ukraine using long-range missiles to fire into against Russian and North Korean forces in the Kursk region of Russia's territory, multiple outlets report. Why it matters: It's the first time Biden has authorized Ukraine to use U.