sentences:  The organization has over 4,000 members since its inception, about 40 volunteers to run its vast operations and its twelve branches throughout the country.Eyal Peretz, chairman of the association, told the Jerusalem Post that Jewish heritage trips to Turkey had stopped because of security concerns and dwindling demand.Peretz stated, "I've devoted most of my life as an adult to cultivate ties between the two people and I've seen how a warm relationship has been erased in one fell swoop.