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Article 21-9 of the French Civil Code

Any person who fulfils the conditions set out in article 21-7 to acquire French nationality loses the option of declining it if he or she enlists in the French armed forces.

Any minor born in France of foreign parents, who is regularly enlisted as a recruit, acquires French nationality on the date of his enlistment.

Original in French 🇫🇷
Article 21-9

Toute personne qui remplit les conditions prévues à l’article 21-7 pour acquérir la qualité de Français perd la faculté de décliner celle-ci si elle contracte un engagement dans les armées françaises.

Tout mineur né en France de parents étrangers, qui est régulièrement incorporé en qualité d’engagé, acquiert la nationalité française à la date de son incorporation.

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