evidence: Hala’ib Triangle border dispute The Hala’ib Triangle is an area of land of just under 20,500 square kilometres on the Egyptian-Sudanese border, which both countries have claim over since Sudan gained independence from Britain in 1956. In the 1990s, Egypt deployed its military in the territory, but, in the following two decades, the dispute was somewhat frozen. In 2016, it flared up again. That year, Cairo signed a controversial agreement with Riyadh to hand over two strategically important Red Sea islands – Tiran and Sanafir – to Saudi Arabia. The agreement, which redrew the maritime border between the two countries, also unilaterally recognised Egypt’s sovereignty over the Hala’ib Triangle.