One of Africa’s largest highway projects is getting a new name—and carrying a diplomatic legacy with it. Morocco has named its 1,055-kilometer expressway linking Tiznit and Dakhla the Donald J. Trump Highway, honoring the US president whose 2020 recognition of Moroccan sovereignty over the Moroccan Sahara marked a major shift in US policy toward the territory. In a message to President Trump, the king wrote that the president’s “historic 2020 recognition of Morocco’s sovereignty over its Sahara will remain engraved in the memory of Moroccans.” Running 1,055 kilometers from Tiznit through Laayoune to Dakhla, the route is described by the king as “the largest road infrastructure in Africa.” Still under construction, it forms a central part of Morocco’s infrastructure development in the Moroccan Sahara.