Johannes "Joe" Modise (23 May 1929 – 26 November 2001) was a South African political figure. He helped to found Umkhonto we Sizwe, the military wing of the African National Congress, and was its longest serving Commander in Chief, deputised at different points in time by Joe Slovo and Chris Hani. Modise headed MK for a 25-year period, from 1965 to 1990. He served as South Africa's first black Minister of Defence from 1994 to 1999 and led the formation of the post-independence defence force.