[UN Secretary-General Antonio Guterres (C) next to Turkish Cypriot leader Mustafa Akinci (L) and Greek Cypriot President Nicos Anastasiades (R) listen to questions following the UN-sponsored Cyprus peace talks on January 12, 2017 in Geneva]Rival Cypriot leaders, along with top diplomats from Turkey, Greece and Britain, agreed Thursday to push on with efforts to reunite the divided island and end one of the world's longest-running political rows.