Divided CitiesIn Jerusalem, Israeli and Jordanian militias patrolled a fortified, impassable Green Line from 1948 until 1967. In Nicosia, two walls and a buffer zone have segregated Turkish and Greek Cypriots since 1963. In Belfast, "peaceline" barricades have separated working class Catholics and Protestants since 1969. In Beirut, civil war from 1974 until 1990 turned a cosmopolitan city into a lethal patchwork of ethnic enclaves. In Mostar, the Croatian and