evidence: Lying adjacent to Bir Tawil is another much larger triangle of land—Hala'ib—which is also sand and rock, but it borders the Red Sea and is hence more valuable. Now both Egypt and Sudan want Hala'ib, but the way the border was created between them, each country can have either Bir Tawil or Hala'ib, but not both. Whoever claims Bir Tawil thus would have to relinquish their claim to the larger and more lucrative Hala’ib Triangle, which neither country wants to lose. [...] Problems didn’t arise until after Sudan achieved independence in 1956. The new Sudanese government declared its national borders as those stipulated in the second proclamation, making the Hala’ib triangle a part of Sudan. Egypt, on the other hand, asserted that this was meant to be a temporary administrative jurisdiction, and that sovereignty had been established in the 1899 treaty, which set the border at the 22nd parallel. This made the Hala’ib triangle Egyptian.