The Arab parties have long been kept on the political sidelines. But stunning turnout by their supporters makes the Arab minority an Israeli political reality that cannot be ignored.
Few countries in the Middle East expect a turning point in relations with Israel. But the outcome of the vote has implications for the regional conflict with Iran.
Parts of Lebanon have been greatly damaged in fighting between Israel and Hezbollah since March, including the Dahiya neighborhood, a Hezbollah stronghold in the capital, Beirut.