معركة الكرامة
Bar fought as the commander of Paratrooper Battalion 202 during the Six-Day War, participating in combat operations in Gaza City. In 1968, he participated in the Battle of Karameh. He later served as the deputy commander of the 275th brigade and as commander of the ID school of officer training. In October 1973, one day before the Yom Kippur War broke out, he was appointed commander of the 820th Brigade, which was positioned on the Golan Heights, and commanded that brigade through the war. He later testified before the Agranat Commission, an Israeli government investigation of failures that occurred during that war. He was then transferred to the Armored Corps and commanded the 166th Brigade, which was based in northern Israel.