Barack Obama was the 44th President of the United States of USA. He won the Nobel Prize for his extraordinary efforts to strengthen international diplomacy and cooperation between peoples.
Pearson was the Canadian prime minister from 1963 to 1968. He won the Nobel Peace Prize in 1957, for his role in resolving the Suez Crisis in which the Egyptian Government seized control of the Suez Canal from the British and French-owned company that managed it. It had important consequences for U.S. relations with both Middle Eastern countries and European allies.
Wałęsa served as Poland’s president from 1990-95. He won the Nobel Peace Prize in 1983 “for non-violent struggle for free trade unions and human rights in Poland”.
Suu Kyi served as the State Counsellor of Myanmar, the de-facto head of the government equivalent to a prime minister, from 2016 to 2021. She won the Nobel Peace Prize in 1991 “for her non-violent struggle for democracy and human rights” in Myanmar.
Nelson Mandela served as the president of South Africa from 1994 to 1999. He was the first Black president of the country, elected in its first-ever multi-racial elections. He was awarded the Nobel Peace Prize in 1993, jointly with then President Frederik Willem de Klerk, “for their work for the peaceful termination of the apartheid regime, and for laying the foundations for a new democratic South Africa”.
Ramos-Horta has been the president of East Timor since 2022. He previously held the top post from 2007 to 2012, and the prime ministership from 2006 to 2007. He won the Nobel Peace Prize in 1996 for working “towards a just and peaceful solution to the conflict in East Timor”.