The following major military operations have sometimes been unofficially referred as Eleven Days War or Eleven Day War:
Operation Faustschlag, a 1918 Central Powers offensive against Soviet Russia during World War I Operation Linebacker II, a 1972 United States bombing campaign against North Vietnam during Vietnam War. Invasion of Yugoslavia, attack of Nazi-Germany on Yugoslavia from 6th to 17th April 1941 Operation Guardian of the Walls, part of the 2021 Israel–Palestine crisis 2024 Syrian opposition offensives, an offensive launched by various rebel factions against the Assad government
See also Eleven Days (disambiguation)