 Ramba uchiverenga ndima ino - Musi wa9 February 1941, Iachino akatungamirira ngarava dzeItaly pakutevera zvisina kubudirira kweBritish Force H, mushure mekunge yapedzisira yarwisa Genoa neLa Spezia. Akarayira zvakare mauto eItaly muhondo yeCape Matapan 26-29 March 1941, iyo yakaguma nekukundwa kukuru kwakambotambudzwa neRegia Marina; kuregera mishumo yeBritain iri pedyo neBritain seisina kururama kana kuti yakawedzerwa, akatumira 1st Cruiser Division yose kuti aponese Pola yakarohwa, zvichiita kuti kuparadzwa kweDhipatimendi rose nevatatu vehondo yeMediterranean Fleet yaAdmiral Andrew Browne Cunningham. Zviito zvake mukati mehondo iyi zvave zvichinyanya kutsoropodzwa kubvira ipapo; zvisinei neizvi, Iachino haana kubviswa pakuva mutungamiri. 