Ya shiga cikin mafi yawan ayyukan wasan kwaikwayo na Turai na Anglo-Faransa War, musamman ma yakin Ushant a 1778, inda ya yi aiki a matsayin Orvilliers 'flagship, tare da Parscau du Plessix a matsayin kyaftin din. Ta shiga cikin
Armada na 1779, amma annoba a cikin jirgin ya tilasta ta komawa Brest a watan Satumba. A shekara ta 1779, an ƙarfafa makamansa ta hanyar ƙara ƙarin 10 6-pounders zuwa kwata-kwata, ya juya ta cikin bindigogi 110. A ranar 2 ga Satumba, 1780, "Bretagne" ya bar Brest zuwa Cadiz, inda ya shiga cikin Babban Siege na Gibraltar.