A peace summit for Ukraine opens this weekend in Switzerland. But Russia won’t be taking part The Associated PressZelensky Says Hopes For ‘Just Peace As Soon As Possible’ At Swiss Summit Barron’sRussia’s Putin proposes cease-fire in Ukraine. Kyiv rejects it The Associated PressUkraine Hosts Peace Talks in Switzerland, Though Russia Isn’t Invited The New York TimesWorld leaders join Ukraine summit in test of Kyiv’s diplomatic clout Reuters