ARIS/BERLIN/WASHINGTON (Reuters) - Is it better to engage with Russian President Vladimir Putin over his invasion of Ukraine or to isolate him? Should Kyiv make concessions to end the war, or would that embolden the Kremlin? Are ramped up sanctions on Russia worth the collateral damage?These are some of the questions testing the international alliance that swiftly rallied around Ukraine in the days after the Russian invasion but that, three months into the war, is straining, officials and diplomats told Reuters.As Western governments grapple with spiralling inflation and energy costs, countries including Italy and Hungary have called for a quick...
