The first Green Line referred to the 1949 armistice line between Israel and the Arab nations (Lebanon, Syria, Jordan and Egypt) following Israel's 1948 War of Independence. The term "Green Line Israel" refers to these borders that lasted from 1949 until the 1967 Six Days War.
The term also refers to the line of demarcation that divides the Cypriot capital of Nicosia into the southern Greek Cypriot region and the northern Turkish Cypriot region that was created following the 1974 invasion by Turkey that created the Turkish Republic of Northern Cyprus.
The Green Line was also a line of demarcation in Beirut, Lebanon during the Lebanese Civil War from 1975 to 1990. It served to separate the Muslim Lebanese in West Beirut from the Christian Lebanese in East Beirut. It was so named because the line was always drawn in green on local maps. Many of the buildings along the Green Line were severely damaged or destroyed during the war. Since the end of hostilities, however, many of the buildings have been rebuilt.
Green Line is the name of an UK magazine. See: Green Anarchist.
he:הקו הירוק de:Grüne Linie