Opinion: With Trump back, Europe can’t afford to guess on sanctions against Russia

The implications of Donald Trump’s imminent return to the White House on Russia’s illegal war in Ukraine are being minutely dissected. Will he deliver on his boast that he can end the war within 24 hours? How will he do that — if he can? At what cost to the long-suffering citizens of Ukraine? And how should Ukraine’s European allies anticipate and respond to whatever the new president — with all his unpredictability — chooses to do?