Represented by Yasser Arafat, F. W. de Klerk, Nelson Mandela, and Yitzhak Rabin. De Klerk, as State President of South Africa, oversaw Mandela's release from prison in 1990. In 1993, the pair were negotiating the end of the Apartheid system, and had just jointly won the Nobel Peace Prize. Arafat, as President of the Palestinian National Authority, and Rabin, as Prime Minister of Israel, signed the 1993 Oslo Accord, the first face-to-face agreement between Palestinian and Israeli authorities.