World War II: The U.S. <a href="https://en.wikipedia.org/wiki/Eighth_Air_Force" id="mwASA" rel="mw:WikiLink" title="Eighth Air Force">Eighth Air Force</a> suffers the loss of 60 bombers on the <a href="https://en.wikipedia.org/wiki/Schweinfurt–Regensburg_mission" id="mwASE" rel="mw:WikiLink" title="Schweinfurt–Regensburg mission">Schweinfurt–Regensburg mission</a>.