gaza/ramallah negotiators rival palestinian factions fatah islamist group hamas discuss security gaza strip unity talk cairo tuesday include proposal would see fatah security personnel deploy hamas-dominated territory plan 3,000 fatah security officer join gaza police force course year part unity deal mediate egypt 2011 would restore much influence fatah leader president mahmoud abbas gaza loosen hamas grip deal never implement western-backed mainstream fatah party lose control enclave hamas consider terrorist group west israel fight 2007. loss damage abbas credibility eye west israel years main palestinian diplomatic counterpart egypt mediation major step make toward narrow rifts since hamas hand administrative power gaza fatah-backed government last month move major reversal hamas partially prompt group fear potential financial political isolation main donor qatar suffer major diplomatic crisis key ally side discuss security issue especially gaza way serve home front enforce rule law professional national way factional say hamas spokesman fawzi barhoum deal hamas would still powerful arm palestinian faction whose estimate 25,000 well-equipped fighters fight three war israel since 2008. issue arm resistance discussion hamas official sami abu zuhri tell reuters israel enmity hamas mean great unity fatah unlikely help future efforts peace deal israel side hope deal propose deployment security personnel fatah-led palestinian authority gaza border encourage egypt israel ease tight restrictions border cross badly need step help gaza revive economy improve live standards two million residents officials say apart implementation 2011 agreement security cairo talk would also cover issue set date presidential legislative elections reform palestine liberation organization charge long-stalled peace efforts israel happen past days something like declaration principles two side postpone final status issue talk cairo say gaza political analyst akram attallah abbas pledge would one authority one law one administration one weapon gaza strip statement seem challenge hamas continue security dominance tayseer nasrallah member fatah revolutionary council tell reuters difficult challenge take time overcome outstanding issue include fate 40,000 50,000 employees hire hamas past 10 years demand abbas lift economic sanction impose recent months try pressure group compromise refiled version story insert drop word paragraph eight fatah hamas discuss security gaza unity deal