<a href="https://en.wikipedia.org/wiki/The_Holocaust" id="mwrA" rel="mw:WikiLink" title="The Holocaust">The Holocaust</a>: In occupied Poland, the <a href="https://en.wikipedia.org/wiki/Nazism" id="mwrQ" rel="mw:WikiLink" title="Nazism">Nazis</a> close off the <a href="https://en.wikipedia.org/wiki/Warsaw_Ghetto" id="mwrg" rel="mw:WikiLink" title="Warsaw Ghetto">Warsaw Ghetto</a> from the outside world.