 Waxa inta badan ay ku sugan yihiin calaamadayn laaan soohdimaha Sudan ay la wadaagto dalalka dariska ah ee kala ah Ethiopia, Libya, Central Africa iyo Masar, kuwaas oo gaadhaya ku dhawaad 6834 kilo-mitir, waxaanan ahayn soohdinta Sudan ay la leedahay dalka Chad oo la calaamadeeyay marka laga reebo qayb yar oo kooban. 