World leaders gathered recently to celebrate the leader and mourn the man: Nelson Mandela. Revered around the world, Mandela helped establish a new era of hope in South Africa after years of prejudice and apartheid, and in doing so, became one of the true giants of the 20th century. Join our panel of experts as we discuss the life and legacy of Nelson Mandela. On our panel: Robert V. Taylor is an anti-apartheid activist who fled South Africa to avoid imprisonment and worked with Nelson Mandela while serving as chair of the Desmond Tutu Peace Foundation; Professor Andrew Grant teaches political studies at Queen's University , is a faculty associate with the Queen's Southern African Research Centre and has been an adviser on identity formation among non-state armed groups in Africa; and Captain Paul K. Chappell is the author of The Art of Waging Peace and the Peace Leadership Director for the Nuclear Age Peace Foundation and lectures internationally on the subject of peace leadership. Be a part of our discussion, Monday at 1 p.m. ET.