Military Naturalization in 2026: Fast-Track Citizenship for Service Members

U.S. immigration law provides an expedited route to citizenship for members of the armed forces. It is one of the few paths in which the usual five-year — or three-year, for spouses of U.S. citizens — permanent-residence and continuous-residence requirements can be reduced or, in some cases, waived entirely. For service members, that can turn a years-long civilian timeline into a far shorter one.

Two provisions of the Immigration and Nationality Act (INA) do most of the work: Section 328, which covers peacetime service, and Section 329, which covers service during a designated period of hostilities. Both allow eligible members to file Form N-400, Application for Naturalization, together with Form N-426, Request for Certification of Military or Naval Service, which the relevant branch uses to verify honorable service. To see how the standard civilian route compares, our Naturalization Process Guide walks through the ordinary requirements step by step.

Peacetime Service (INA § 328)

A lawful permanent resident who serves honorably in the U.S. armed forces for a qualifying period — generally one year, which may be satisfied through periods of service that add up — can apply under INA § 328. The central benefit is relief from parts of the residence and physical-presence rules that civilian applicants must otherwise meet. An applicant who files while still serving, or shortly after separation, may not need to demonstrate the same continuous-residence and physical-presence periods that a comparable civilian applicant would.

Section 328 still assumes that the applicant already holds a green card; it builds on lawful permanent residence rather than replacing it. If you are still working toward that status, our Green Card Guide explains the underlying categories. As with all military filings, the applicant submits Form N-400 alongside Form N-426 so the service branch can certify the length and character of service.

Wartime and Designated-Period Service (INA § 329)

INA § 329 applies to those who serve honorably during a period the President has designated as a period of hostilities. Its reach is broader than § 328 in one decisive respect: a person may qualify even without ever having been a lawful permanent resident. That is the key difference between the two provisions. Where § 328 presumes an existing green card, § 329 can allow certain members to naturalize on the strength of their qualifying service alone, and in some circumstances they may file from outside the United States.

A period of hostilities beginning September 11, 2001 was designated by executive order and, as of this writing, has not been terminated — which is why many recent and currently serving members apply under § 329. Because that section does not require a prior green card and does not impose the same one-year service threshold, it is frequently the faster path for those who are eligible. Applicants still file Form N-400 together with Form N-426.

Requirements That Still Apply

Expedited does not mean automatic. Under both § 328 and § 329, applicants must still satisfy the core substantive requirements of naturalization: good moral character, an attachment to the principles of the U.S. Constitution, and a willingness to take the Oath of Allegiance. They must also demonstrate a knowledge of English and of U.S. history and government (civics), subject to the same limited exceptions and disability accommodations available to civilian applicants.

One meaningful advantage is cost. The filing fees for the N-400 are generally waived for those naturalizing through military service. Once an application is approved, the final step is the same as it is for every other new citizen — the oath — and our Naturalization Oath Ceremony Guide explains what that ceremony involves.

Where It Stands in 2026

The statutes behind military naturalization have been stable, but the mechanics of processing have shifted over the years as the Department of Defense and USCIS have revised their procedures. Policies governing when service members may naturalize during basic training, how background and security checks are sequenced, and where ceremonies are held have all changed at various points. Those operational details — rather than the underlying eligibility rules — are where applicants most often encounter uncertainty.

For that reason, service members should confirm current procedures through their chain of command, their installation's legal assistance or judge advocate (JAG) office, and the dedicated military pages at uscis.gov/military before filing. Timelines and internal steps can vary by branch and by installation, and the most reliable guidance comes from those official channels rather than from general summaries.

Family Members

Certain relatives of service members have provisions of their own. Spouses of U.S. citizens who are stationed or deployed abroad may, in some cases, be able to naturalize without meeting the ordinary residence requirements, and certain children of members serving overseas may qualify for expeditious naturalization or acquisition of citizenship. These family pathways are separate from § 328 and § 329 and carry their own conditions, so eligible relatives should seek guidance specific to their circumstances.

Military Naturalization at a Glance

Whether § 328 or § 329 applies depends on the timing and nature of the service, so members who are unsure which route fits should verify their status with their command and the installation legal office before filing.