<a href="https://en.wikipedia.org/wiki/Vietnam_War" id="mw-Q" rel="mw:WikiLink" title="Vietnam War">Vietnam War</a>: Boxer <a href="https://en.wikipedia.org/wiki/Muhammad_Ali" id="mw-g" rel="mw:WikiLink" title="Muhammad Ali">Muhammad Ali</a> refuses his induction into the <a href="https://en.wikipedia.org/wiki/United_States_Army" id="mw-w" rel="mw:WikiLink" title="United States Army">United States Army</a> and is subsequently stripped of his championship and license.