The <a href="https://en.wikipedia.org/wiki/Soviet_Union" id="mwmA" rel="mw:WikiLink" title="Soviet Union">Union of Soviet Socialist Republics</a> (USSR) <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Treaty_on_the_Creation_of_the_USSR" id="mwmQ" rel="mw:WikiLink" title="Treaty on the Creation of the USSR">is formed</a>.