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 island was split in a Turkish invasion in 1974 triggered by a brief Greek inspired coup. 'The leaders are showing a lot of courage, a lot of will,' Eide told a news briefing. 'It's going to be difficult but not impossible.' Greek Cypriot leader Nicos Anastasiades and Turkish Cypriot leader Mustafa Akinci are discussing power-sharing, territorial adjustments and security issues as part of reuniting Cyprus under a federal umbrella. 'We are now in the final moment. We are now in the moment of truth,' Eide said.