خط بارليف
During the June 1967 Six-Day War he served as the Deputy Chief of Staff in the IDF. In late 1968 he accepted Maj. Gen. Adan's proposal that a high sand-dune wall be built along the east bank of the Suez Canal to prevent the Egyptian military from observing Israeli defenses along the Suez Canal. Behind the sand dune a line of fixed fortifications was constructed. This became known as the Bar Lev Line.