Military service — Diplomats/military families 3-year track

GR-MIL-01 es la ruta de nacionalidad griega según la cual los extranjeros de ascendencia étnica griega (αλλοδαποί ομογενείς) adquieren la nacionalidad griega automáticamente (αυτοδίκαια / ipso jure) al ingresar a las fuerzas armadas helénicas, mediante la admisión a una escuela de oficiales militares/suboficiales, el alistamiento voluntario o la promoción de oficiales. A partir de 2026 se rige por el artículo 4 del Código de Nacionalidad Griego (Ley 3284/2004) y está en vigor, sin cambios sustanciales desde 2004. Es un canal coétnico de nicho y de bajo volumen, no un esquema general de naturalización por servicio.

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The 'ομογένεια' (Greek ethnic origin) standard used in Art 4 is the same co-ethnic concept applied across Arts 10/15/23 — assessed by Greek authorities on documentary and other evidence of Greek lineage/consciousness. Eligibility to enter a Greek military school or to enlist as a volunteer is governed by separate military-recruitment legislation ('σύμφωνα με την ισχύουσα νομοθεσία'), which sets age, fitness and admission rules — those are upstream conditions, not part of the nationality grant. (As of 2026.)

No language/civics testing applies to the Art 4 grant. Because acquisition is ipso jure (§1, §3) or by bare application (§2, §5), there is no ΠΕΓΠ / Art 5A language-history-culture examination and no Citizenship-Council interview (those attach to ordinary naturalization of αλλογενείς; ομογενείς are anyway exempt from the Art 5(2) conditions). The military oath (§4) substitutes for the citizen's oath, so no separate civic-oath ceremony is required. (As of 2026.)

The Art 4 file rests on (a) proof of ομογένεια — birth/baptism and family records, ancestor Greek-municipality (δημοτολόγιο/μητρώο αρρένων) registration, ΕΔΤΟ for Albanian-origin co-ethnics, consular ethnicity attestations — and (b) proof of the triggering event: the military-school admission act (πράξη εισαγωγής), the enlistment/volunteer-registration act (πράξη κατάταξης), the officer-commission act, or the parent's child-following application. Because acquisition is automatic at the event, the file is largely the military administrative record itself; a granular Art-4-specific documentary checklist is not separately primary-pinned (route-level gap).

Practical guidance (2026): confirm provable ομογένεια FIRST — without Greek descent the route is unavailable regardless of service; understand that §1/§3 acquisition is automatic with no 'citizenship application' to file; use §5 promptly for minor children before they turn 18 or marry; do not confuse Art 4 with Art 3 (adoption) or expect a generic foreign-recruit scheme; for diplomat/military-family residence-counting look to Art 5(1)(δ) ordinary naturalization not Art 4; and plan for the renunciation lock while military obligations are outstanding. If not pursuing a military career, prefer the civilian co-ethnic routes (Art 10/15/23).

Under §1 and §3 nationality is acquired instantaneously by operation of law at the moment of admission/enlistment/officer-promotion — there is no processing queue for the acquisition itself. The §2 (wartime volunteer) and §5 (child-following) variants are processed as bare administrative applications 'χωρίς άλλη διατύπωση' (without further formality), materially faster than the ~18-month Art 10 ομογενής naturalization. A specific statutory day-count for Art 4 §2/§5 is not primary-pinned (route-level gap; do not fabricate).

Article 4 specifies no fee for the acquisition itself, since the mechanism is automatic or by bare application — distinguishing it from ordinary naturalization (€550 allogeneis / €100 ομογενείς) and Art 10 ομογενής naturalization (€100 + €30 consular impost). The military-service track has its own non-citizenship costs governed by recruitment law, not by Art 4. (As of 2026.)

El instrumento que lo rige es el artículo 4 ΚΕΙ ('Με κατάταξη στις ένοπλες δυνάμεις' — por alistamiento en las fuerzas armadas), Ley 3284/2004, ΦΕΚ Α' 217/10.11.2004, consolidado al 17.9.2025. Verbatim §1 (recuperado y confirmado el 5 de junio de 2026): 'Ομογενείς αλλοδαποί εισαγόμενοι στις στρατιωτικές σχολές αξιωματικών ή υπαξιωματικών … ή κατατασσόμενοι … ως εθελοντές … αποκτούν αυτοδίκαια την Ελληνική Ιθαγένεια.' El artículo tiene cinco párrafos (§1 ipso-jure sobre admisión/alistamiento; §2 voluntarios en tiempos de guerra mediante solicitud; §3 ascenso de oficiales ipso jure; §4 sustitutos de juramento militar; §5 menores-hijos siguen).

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For the ipso-jure modes (§1, §3) acquisition is automatic and generated by the Hellenic armed forces / Ministry of National Defence recruitment apparatus. For the application modes (§2 wartime volunteers; §5 child-following), the Γενικός Γραμματέας της Περιφέρειας (Regional General Secretary) / modern Regional Citizenship Directorate, under the Ministry of the Interior citizenship machinery, is the receiving/deciding authority (Art 4 §2, §5). The Ministry of the Interior owns the Nationality Code; service obligations fall under the Ministry of National Defence.

The defining pitfall is treating Art 4 as a generic 'join the Greek army → get citizenship' scheme open to any foreigner — it is RESTRICTED to ομογενείς (V-CORR 17). A second pitfall is confusing Art 4 (armed forces) with Art 3 (adoption), which is a different mode. A third is assuming the 'diplomat/military-family residence-counting' facilitation is part of Art 4 — it is actually an Art 5(1)(δ) ordinary-naturalization clause. A fourth is letting a child age out of §5 (lost at 18 or on marriage). (As of 2026.)