De Havilland DH.10s
...that the Royal Air Force ordered 1,291 De Havilland DH.10s for use in World War I, but they were only used in a single bombing mission before the armistice ended the fighting?
...that the <a href="./Royal_Air_Force" id="mwBO4" rel="mw:WikiLink" title="Royal Air Force">Royal Air Force</a> ordered 1,291 <b id="mwBO8"><a class="mw-redirect" href="./De_Havilland_DH.10" id="mwBPA" rel="mw:WikiLink" title="De Havilland DH.10">De Havilland DH.10s</a></b> <i id="mwBPE">(pictured)</i> for use in <a href="./World_War_I" id="mwBPI" rel="mw:WikiLink" title="World War I">World War I</a>, but they were only used in a single bombing mission before the <a class="mw-redirect" href="./Armistice_with_Germany_(Compiègne)" id="mwBPM" rel="mw:WikiLink" title="Armistice with Germany (Compiègne)">armistice</a> ended the fighting?