World War II: The <a href="https://en.wikipedia.org/wiki/Red_Army" id="mwjQ" rel="mw:WikiLink" title="Red Army">Red Army</a> begins the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Vistula–Oder_Offensive" id="mwjg" rel="mw:WikiLink" title="Vistula–Oder Offensive">Vistula–Oder Offensive</a>.