Elazar remained in the army after the war, transferring to the armored corps following the 1956 Sinai campaign. He served as deputy to the commander of the corps, Haim Bar Lev, taking over as commander of the armored corps in 1961. He remained in this position until 1964, when he was appointed Chief of the Northern Command, a position he held until 1969. During the Six-Day War of 1967 he was a crucial advocate for the occupation of the strategic Golan Heights, which was then a part of Syria, and he oversaw the capture in just two days.