abstract:Bir Tawil or Bi'r Tawīl (بير طويل or بئر طويل in Arabic; meaning "tall water well") is a area along the border between Egypt and Sudan, which is claimed by neither country. When spoken of in association with the neighboring Hala'ib Triangle, it is sometimes referred to as the Bir Tawil Triangle, despite the area's quadrilateral shape, with the longer side in the north of the area running along the 22° north circle of latitude.