Sweden stresses Kyiv's role in Ukraine peace process / Europe's pledge to Ukraine tested by Trump, politics, public fatigue / New findings in Nord Stream sabotage case may sway Europe's perception of Ukraine -- expert / Ukrainians should decide whether they want to give up territories -- top Austrian diplomat / War in Ukraine: Why Crimea remains Kyiv's priority / Thomas Piketty: 'Ukraine's entry into the EU must be an opportunity to define strict standards guaranteeing pluralism in all its forms' / 'It is urgent': European leaders appeal for greater support for Ukraine as Russia makes major gain / Strong European backing for Ukraine leaves 'little space' for exploitation of pro-Russian politics, study shows