Ramba uchiverenga ndima iyi - Muna 1772, Gálvez akadzokera kuSpain aine babamunini vake, José de Gálvez. Gare gare, akatumirwa kuPau, France, uko akashanda kwemakore matatu neRoyal Cantabria regiment, boka revarwi veFrance neSpain. Ikoko, akadzidza kutaura chiFrench, icho chakamubatsira paakava gavhuna weLouisiana. Akaendeswa kuSeville muna 1775, uye akabva apinda mukubudirira kwakaipisisa kwaAlejandro O'Reilly kuenda kuAlgiers
. Gálvez pachake akakuvadzwa zvakakomba mukuita basa apo mauto eSpanish akarwisa nhare yaichengeta guta racho; gare gare akagadzwa purofesa pachikoro chechiuto cheAvila uye akasimudzirwa kuva lieutenant colonel. Akakwidziridzwa kuva mukuru mukuru muna 1776.