The Mahdist War, a period of intense conflict in Sudan, saw the rise of Muhammad Ahmad, who proclaimed himself the Mahdi. His followers, the Ansar, engaged in a protracted struggle against the Egyptian and British forces. The Mahdist movement, rooted in religious and political grievances, aimed to establish an Islamic state in Sudan. The war was marked by significant battles, including the siege of Khartoum and the Battle of Omdurman, which ultimately led to the Mahdist defeat.