The <a href="https://en.wikipedia.org/wiki/Battle_of_Los_Angeles" id="mwAQY" rel="mw:WikiLink" title="Battle of Los Angeles">Battle of Los Angeles</a>: A <a href="https://en.wikipedia.org/wiki/False_alarm" id="mwAQc" rel="mw:WikiLink" title="False alarm">false alarm</a> led to an anti-aircraft barrage that lasted into the early hours of February 25.