The West Bank and the Gaza Strip became distinct geographical units as a result of the 1949 armistice that divided the new Jewish state of Israel from other parts of Mandate Palestine.From 1948 to 1967, the West Bank, including East Jerusalem, was ruled by Jordan. During this period, the Gaza Strip was under Egyptian military administration.
In the 1948 Arab-Israeli War, Israel took control of the western part of Jerusalem, while Jordan took the eastern part, including the old walled city containing important Jewish, Muslim and Christian religious sites.