Lyon-class battleships
... that all four Lyon-class battleships were cancelled on account of World War I?
... that all four <b id="mwBPE"><a about="#mwt24" data-mw='{"parts":[{"template":{"target":{"wt":"sclass","href":"./Template:Sclass"},"params":{"1":{"wt":"Lyon"},"2":{"wt":"battleship"},"3":{"wt":"2"}},"i":0}}]}' href="./Lyon-class_battleship" id="mwBPI" rel="mw:WikiLink" title="Lyon-class battleship" typeof="mw:Transclusion"><i>Lyon</i>-class</a><span about="#mwt24"> battleship</span>s</b> were cancelled on account of <a href="./World_War_I" id="mwBPM" rel="mw:WikiLink" title="World War I">World War I</a>?