Rubuta ci gaba don wannan sakin layi - Dukansu "Andrea Doria" da "Duilio" sun shiga cikin bushewa a ƙarshen shekarun 1930 don tsaftacewa; wannan aikin ya ci gaba har zuwa Oktoba da Afrilu 1940, bi da bi. A wannan lokacin, Italiya ta shiga Yaƙin Duniya na biyu a gefen ƙasashen da suka goyi bayan Jamus da Amirka. Jirgin biyu sun shiga cikin 5th Division da ke Taranto. "Duilio" ya shiga cikin wani sintiri da aka yi niyyar kama jirgin yakin Birtaniya da kuma jirgin da ke zuwa Malta, amma ba a sami manufa ba. Ita da "Andrea Doria" sun kasance a lokacin da Birtaniya ta kai hari a Taranto
a daren 11/12 Nuwamba 1940. Wani karfi na 21 Fairey Swordfish torpedo-bombers, wanda aka kaddamar daga, ya kai hari kan jiragen ruwa da ke cikin tashar jiragen ruwa. "Andrea Doria" ba shi da lahani a cikin harin, amma "Duilio" ya sami rauni ta hanyar torpedo a gefen hagu. An dakatar da shi don hana shi daga nutsewa a cikin tashar jiragen ruwa kuma an yi gyare-gyare na wucin gadi don ba shi damar tafiya zuwa Genoa don gyare-gyare na dindindin, wanda ya fara a watan Janairun 1941. A watan Fabrairu, sojojin Burtaniya H suka kai mata hari; wasu jiragen ruwa na yaki sun yi kokarin harba "Duilio" yayin da take cikin tashar jiragen ruwa, amma ba su ci nasara ba. Ayyukan gyare-gyare sun ci gaba har zuwa Mayu 1941, lokacin da ta koma cikin rundunar jiragen ruwa a Taranto.