D'Artagnan is initially portrayed by Dumas as a hotheaded youth, who tries to engage the Comte de Rochefort and the three musketeers, Athos, Porthos, and Aramis in single combat. He quickly becomes friends with the musketeers, and has a series of adventures which put him at odds with Cardinal Richelieu, then First Minister of France. In the end, Richelieu is impressed by d'Artagnan, and makes him a lieutenant of the musketeers. This begins his long career of military service, as detailed in the sequels.