It includes the 10th and 14th Armor Brigades: 10th "Harel" (Reserve) Armor Brigade The brigade was established as a division of the Palmach on 16 April 1948, immediately after Operation Nachshon. Yitzhak Rabin was appointed as its first commander. During the Suez Crisis (Kadesh Operation) in 1956, the brigade fought as an infantry brigade commanded by Shmuel Gudar.