<a href="https://en.wikipedia.org/wiki/World_War_II" id="mw2A" rel="mw:WikiLink" title="World War II">World War II</a>: <a href="https://en.wikipedia.org/wiki/Soviet_Union" id="mw2Q" rel="mw:WikiLink" title="Soviet Union">Soviet Union</a> begins the liberation of <a href="https://en.wikipedia.org/wiki/Czechoslovakia" id="mw2g" rel="mw:WikiLink" title="Czechoslovakia">Czechoslovakia</a> from <a href="https://en.wikipedia.org/wiki/Nazi_Germany" id="mw2w" rel="mw:WikiLink" title="Nazi Germany">Nazi Germany</a>.