According to Avi Shlaim, in March 1949 as the Iraqi forces withdrew and handed over their positions to the Jordanian legion, Israel carried out Operation "Shin-Tav-Shin" which allowed Israel to renegotiate the cease fire line in the Wadi Ara area of the northern West Bank in a secret agreement that was incorporated into the General Armistice Agreement. The Green Line was redrawn in blue ink on the southern map to give the impression that a movement in the green line had been made.