Having risen to prominence at the 1960 Olympics, Ali was heavyweight champion of the world when he was called up to serve in Vietnam in 1967 – and refused, on religious grounds. Ali’s refusal to fight in Vietnam places him at the crossroads of race relations, the Cold War and American politics. Episode Notes: http://digitalarchive.wilsoncenter.org/resource/sport-in-the-cold-war/episode-12-muhammad-ali