United States President <a href="https://en.wikipedia.org/wiki/Dwight_D._Eisenhower" id="mwARs" rel="mw:WikiLink" title="Dwight D. Eisenhower">Dwight D. Eisenhower</a> gives his "<a href="https://en.wikipedia.org/wiki/Domino_theory" id="mwARw" rel="mw:WikiLink" title="Domino theory">domino theory</a>" speech during a news conference.