RAMALLAH, March 31, 2004, (WAFA) - The Palestinian leadership yesterday called upon Arab leaders to unify stances and exert every possible effort to hold the Arab Summit that was postponed in Tunis on Sunday.... A meeting headed by President Yasser Arafat, in Ramallah headquarters, on the occasion of the Land Day, which was attended by the PLO Executive Committee members and representatives of various Palestinian organizations, discussed the latest political developments on the Arab and Palestinian arena.... "Holding the Arab summit as soon as possible would block the road for any attempt to harm the future of the Arab national interests, and to end the Israeli aggression against our people," the statement said.... The Leadership called for halting the Israeli aggressive policy against the Palestinian people, especiallythe construction of the Apartheid wall and the grabbing and annexation of Palestinian land....