Green Line or (pre-)1967 borders or 1949 Armistice borders refers to the demarcation lines set out in the 1949 Armistice Agreements between the armies of Israel and those of its neighbors (Egypt, Jordan, Lebanon and Syria) after the 1948 Arab–Israeli War. The name derives from the green ink used to draw the line on the map while the armistice talks were going on. From Israel's perspective, the territories "beyond" the Green Line came to be designated as East Jerusalem, the West Bank, Gaza Strip, Golan Heights and Sinai Peninsula (the Sinai Peninsula has since been returned to Egypt as part of the 1979 peace treaty). The Green Line became especially significant in Israel after Israel captured these territories in the Six-Day War in 1967, when Israeli maps contained the Green Line. These territories have since 1967 often been referred to as Israeli occupied territories.