unite nations egyptian president abdel fattah al-sisi urge palestinians overcome differences ready co-exist israelis safety security tell palestinian people extremely important ... overcome differences lose opportunities ready accept co-existence israelis safety security sisi tell annual u.n. general assembly gather world leaders new york follow egyptian-mediated reconciliation talk palestinian president mahmoud abbas western-backed fatah faction islamist hamas say sunday would dissolve administrative committee enable abbas administration retake control gaza strip hamas urge abbas tuesday respond end sanction impoverish enclave address israelis sisi say excellent experience egypt peace long 40 years repeat experience excellent step peace security israeli citizens together peace security palestinian citizens sisi tell 193-member general assembly round applause israel egypt sign 1979 treaty begin overtures toward peace 1977. qatar emir sheikh tamim bin hamad al-thani also appeal tuesday speech general assembly palestinians complete national reconciliation unify position word confront dangers challenge face palestinian cause future palestinian people egypt 's sisi urge palestinians unite co-exist israelis