The Battle of the Sinai was one of the most consequential battles of the Yom Kippur war. An Egyptian attacking force that advanced beyond their line of defense at the Bar-Lev Line was repulsed with heavy losses by Israeli forces. This prompted the Israelis to launch Operation Abiray-Lev (Stouthearted Men) the next day, penetrating the Egyptian line of defense and crossing the Suez Canal.