There are many reasons why China may not be in a hurry to see Russia’s war in Ukraine end

President Joe Biden’s trip to mark the anniversary of the war in Ukraine is highlighting an even more grave challenge – a new era of simultaneous and sometimes intertwined US confrontations with nuclear rivals Russia and China. Biden’s dramatic visit to Kyiv Monday amid wailing air raid sirens and his soaring speech in Warsaw a day later reinforced the West’s remarkable support for Ukraine’s