The Mahdist Movement was a religious and political uprising in the late 19th century, primarily in what is now Sudan. It was led by Muhammad Ahmad, who claimed to be the Mahdi, a messianic figure in Islamic belief. The movement sought to establish a pure Islamic state and resist foreign influence, particularly from the British and Egyptians. The Mahdist forces successfully captured the city of Khartoum in 1885, marking a significant victory. However, the movement faced challenges, including internal divisions and military defeats. Ultimately, it was suppressed by British forces in the late 1890s, leading to the establishment of British colonial rule in Sudan.