As envisioned in the Oslo Accords, Israel allowed the PLO to establish interim administrative institutions in the Palestinian territories, which came in the form of the PNA. It was given civilian control in Area B and civilian and security control in Area A, and remained without involvement in Area C. In 2005, following the implementation of Israel’s unilateral disengagement plan, the PNA gained full control of the Gaza Strip with the exception of its borders, airspace, and territorial waters.