Deeply divided top diplomats from the world’s richest and largest developing nations failed to find common ground Friday over Russia’s war in Ukraine and how to deal with its global impacts, leaving prospects for future cooperation in the forum uncertain. Although they were present in the same room at the same time for the first time since the Ukraine war began, U.S. Secretary of State Antony Blinken and Russian Foreign Minister Sergey Lavrov pointedly ignored each other. Lavrov walked out of the proceedings at least twice: once when his German counterpart Annalena Baerbock spoke at the opening session and again...