[U.N. special envoy for the Cyprus reunification talks Espen Barth Eide speaks during a news conference in Geneva]A peace deal in Cyprus is difficult but not impossible, a senior United Nations envoy said on Monday as leaders of the ethnically-split island met for crucial reunification talks in Geneva. Espen Barth Eide, a former Norwegian foreign minister, also said the United Nations would only facilitate, and not arbitrate in talks between Greek and Turkish Cypriots. "The leaders are showing a lot of courage, a lot of will," Eide told a news briefing.