World leaders join Ukraine summit in test of Kyiv’s diplomatic clout ReutersUkraine Peace Summit: Leaders meet in Switzerland, Russia absent The Associated PressInternational Summit Debates Ukrainian Peace Deal In Russia’s Absence Radio Free Europe / Radio LibertyRussia, China absent as world leaders meet for Ukraine peace conference Al Jazeera EnglishZelenskiy Vows to Forge Ahead as Summit Risks Falling Short Bloomberg