<a href="https://en.wikipedia.org/wiki/World_War_I" id="mw2A" rel="mw:WikiLink" title="World War I">World War I</a>: The <a href="https://en.wikipedia.org/wiki/German_Empire" id="mw2Q" rel="mw:WikiLink" title="German Empire">German Empire</a> declares war on the <a href="https://en.wikipedia.org/wiki/Russian_Empire" id="mw2g" rel="mw:WikiLink" title="Russian Empire">Russian Empire</a>.