Rubuta ci gaba don wannan sakin layi - Jirgin ruwan yaki na "Kongō" sune manyan jiragen ruwa na sojojin ruwa na Japan a lokacin Yaƙin Duniya na II, suna shiga cikin mafi yawan manyan yaƙe-yaƙe na yaƙin. "Hiei" da "Kirishima" sun yi aiki a matsayin masu rakiyar yayin harin a kan Pearl Harbor, yayin da "Kongō" da "Haruna" suka goyi bayan mamayewar Singapore. Dukkansu huɗu sun halarci yaƙin Midway
da kuma Guadalcanal. "Hiei" da "Kirishima" duk sun ɓace a lokacin Yaƙin Naval na Guadalcanal a watan Nuwamba 1942, yayin da "Haruna" da "Kongō" suka haɗu tare da harin jirgin saman Henderson Field na Amurka a Guadalcanal. Sauran jiragen ruwa guda biyu na Kongō-class sun shafe mafi yawan shekarun 1943 a tsakanin tashar jiragen ruwa na kasar Japan kafin su shiga cikin manyan yakin basasa na 1944. "Haruna" da "Kongō" sun yi yaƙi da jiragen ruwa na Amurka a lokacin yakin Leyte Gulf a ƙarshen Oktoba 1944. "Kongō" jirgin ruwa ya yi birgima kuma ya nutse ta jirgin ruwa a watan Nuwamba na 1944, yayin da "Haruna" ya nutse a tashinsa ta hanyar harin iska a Kure Naval Base a ƙarshen Yuli 1945, amma daga baya ya tashi kuma ya rushe a 1946.