US President Joe Biden may take part in a high-level conference on peace in Ukraine to be held in Switzerland around mid-June, NZZ reports. The agency, citing sources, says that US President Joe Biden would attend the conference. As a rule, the final decision is made only upon request, especially since Switzerland and Ukraine have not yet sent out invitations. So far, President Biden has not confirmed his participation in the American delegation, according to a spokesperson for the US Embassy in Bern. However, the chances of Biden’s arrival have increased. He is scheduled to attend the G7 summ…