In <a href="https://en.wikipedia.org/wiki/Berlin" id="mw9Q" rel="mw:WikiLink" title="Berlin">Berlin</a>, <a href="https://en.wikipedia.org/wiki/Nazi_Germany" id="mw9g" rel="mw:WikiLink" title="Nazi Germany">Germany</a> and Japan sign the <a href="https://en.wikipedia.org/wiki/Anti-Comintern_Pact" id="mw9w" rel="mw:WikiLink" title="Anti-Comintern Pact">Anti-Comintern Pact</a>, agreeing to consult on measures "to safeguard their common interests" in the case of an unprovoked attack by the <a href="https://en.wikipedia.org/wiki/Soviet_Union" id="mw-A" rel="mw:WikiLink" title="Soviet Union">Soviet Union</a> against either nation.