World leaders join major Ukraine peace summit in Switzerland - but no Russia or China CNNUkraine Peace Talks Held in Switzerland, Though Russia Isn't Invited The New York TimesWorld leaders join Ukraine summit in test of Kyiv's peace push ReutersAbout 90 countries to take part in the Swiss-hosted Ukraine peace summit. Russia won't attend The Associated PressRussia, China absent as world leaders meet for Ukraine peace conference Al Jazeera English