The Bar-Lev Line was a chain of fortifications built by Israel along the Suez Canal following their victory in the Six-Day War. Known for its well-designed system of roads, it was considered impenetrable and was a celebrated piece of Israeli military design. However, during the Yom Kippur War, Egyptian forces managed to overrun the line in the space of two hours due to the surprise nature of the attack and the overwhelming number of soldiers involved. This contributed heavily to Israel’s initial losses during the war before their counterattack.