ir ▁joined ▁the ▁Navy ▁in ▁ 1 7 8 7 ▁as ▁an ▁ ▁and ▁served ▁in ▁America ▁until ▁ 1 7 9 0 . ▁He ▁was ▁then ▁promoted ▁to ▁en sign ▁and ▁served ▁on ▁the ▁fr ig ates ▁Pom one ▁and ▁N éré ide , ▁cru ising ▁off ▁Africa . ▁He ▁then ▁emb ark ed ▁on ▁the ▁flu yt ▁D rom ada ire , ▁bound ▁for ▁C ay enne . ▁ ▁Prom oted ▁to ▁lieutenant ▁in ▁ 1 7 9 0 , ▁he ▁was ▁appointed ▁to ▁the ▁staff ▁of ▁Admir al ▁Martin . ▁He ▁served ▁on ▁Sans - C ul otte . ▁ ▁Prom oted ▁to ▁captain , ▁Dum ano ir ▁took ▁command ▁of ▁the ▁Ber wick ▁in ▁Rich ery ' s ▁squad ron , ▁ra iding ▁commerce ▁in ▁the ▁Mediter rane an ▁and ▁in ▁New found land . ▁ ▁In ▁ 1 7 9 6 , ▁Dum ano ir ▁commanded ▁a ▁division ▁under ▁Admir al ▁B ouv et ▁during ▁the ▁Exp édition ▁d ' I rl ande , ▁with ▁his ▁flag ▁on ▁Ré volution . ▁Upon ▁his ▁return ▁to ▁France , ▁he ▁encountered ▁the ▁ ▁Sc é vol a , ▁badly ▁dam aged ▁in ▁a ▁storm , ▁and ▁res cu ed ▁her ▁crew . ▁ ▁In ▁ 1 7 9 8 , ▁Dum ano ir ▁took ▁part ▁in ▁the ▁prepar ation ▁for ▁the ▁invasion ▁of ▁Egypt , ▁and ▁was ▁task ed ▁with ▁super vis ing ▁the ▁har bour ▁of ▁Alexand ria ▁afterwards . ▁The ▁next ▁year , ▁he ▁commanded ▁the ▁fr ig