Before América, he fough in the battlefields of Italia during the War of the Austrian Succession (1740–48) and Seven Years' War (1756-1763). But his main field of action was New Spain, where he fought against the Seris and the Pimas, Indian tribes of Sonora, in México and Southern Arizona in the United States, between 1767 and 1771. He published a book about his experiences in the region.
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