evidence: Sudan borders Egypt to the south, with both countries having a coastline along the Red Sea. The two countries share a 1,276 kilometers long border that runs eastwards from Gabal El Uweinat, a tripod area on the Sudanese-Egyptian-Libyan border, along the 22nd parallel north. The border follows a straight line from the tripod to Lake Nasser then briefly detours northward to form a salient known as "Wadi Halfa." From the salient, the border returns to its course on the 22nd parallel and proceeds to the Red Sea, terminating near Ras Hadarba (Cape Elba). This long border between the two countries is, however, not free of disputes. The two disputed areas along their borders are Halayib Triangle and Bir Tawil. [...] According to Sudan, its border with Egypt follows the 22nd parallel for about 183 kilometers from the Wadi Halfa salient, then shifts south, leaving Bir Tawil on the Egyptian side. It then proceeds northeastwards, leaving Hala’ib Triangle within the Sudanese territory. However, Egypt insists the border follows the 22nd parallel from the salient to Cape Elba, leaving the Triangle within Egypt. The triangular region is suspected to contain rich natural resources, with both countries interested in exploring it for oil and gas reserves. Although it ceded its control to Egypt, Sudan insists the area is its territory, and the people inhabiting the region are ethnically Sudanese. Besides the Hala’ib Triangle, there is also the Bir Tawil’s issue.