Nelson Mandela took on Suharto in his own house. He demanded to meet with imprisoned East Timorese leader Xanana Gusmao during a 1997 visit to Jakarta. Mandela insisted that the meeting take place outside the prison.
From Mandela, Indonesia and the liberation of Timor Leste | The Jakarta Post:
"Unlike many, Mandela remains loyal to the principles of Bandung that included the right to self-determination. Indeed, contrary to leaders of Indonesia’s New Order, he threw his full weight behind the liberation of Timor Leste."
"The defining moments for Mandela and Xanana were at the expense, slowly but surely, of Soeharto."