Kawachi-class battleships
... that the only significant action performed by either of the Japanese Kawachi-class battleships during World War I was when they bombarded German fortifications in China in 1914?
... that the only significant action performed by either of the Japanese <b id="mwA0U"><a href="./Kawachi-class_battleship" id="mwA0Y" rel="mw:WikiLink" title="Kawachi-class battleship"><i id="mwA0c">Kawachi</i>-class battleships</a></b> during <a href="./World_War_I" id="mwA0g" rel="mw:WikiLink" title="World War I">World War I</a> was when they <a href="./Siege_of_Tsingtao" id="mwA0k" rel="mw:WikiLink" title="Siege of Tsingtao">bombarded German fortifications</a> in China in 1914?