Ali risked everything---his career and his freedom---to resist and protest killing other people for no good reason other than hegemony and corporate profits. Vietnam was a big money-maker for the war profiteers. Cheney, G.W. Bush and others "dodged" the draft during Vietnam. Ali saw what I didn't see at the time (as a member of the US Army) that US "involvement" in Vietnam was almost as stupidly evil and destructive of entire nations and masses of innocents as our invasion of  Iraq, which was, and still is,  a corporate, petroleum and war industries "investment."