World War II: <a href="https://en.wikipedia.org/wiki/San_Marino" id="mw1A" rel="mw:WikiLink" title="San Marino">San Marino</a>, a neutral state, is mistakenly bombed by the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/RAF" id="mw1Q" rel="mw:WikiLink" title="RAF">RAF</a> based on faulty information, leading to 35 civilian deaths.