Are you a current or former member of the U.S. military? By this we mean a service person who is or has been on active or reserve duty with the U.S. Army, Navy, Marines, Air Force, or Coast Guard, or in a National Guard unit while the unit was federally recognized as a reserve component of the U.S. Armed Forces. (This definition comes from the U.S. Code of Federal Regulations at 8 C.F.R § 328.1.)
If you fit one of these descriptions, and are thinking of applying for U.S. citizenship, you'll first want to understand the general requirements for citizenship described in Who Can Apply for U.S. Citizenship. Most of these rules will apply to you as a military member. For example, you'll need to learn English and prepare for the exam on U.S. history and government just like any other applicant.
However, you'll also want to look into some important exceptions to the usual naturalization application rules. These exceptions might ease the process and allow you, as a service member, to become a U.S. citizen faster than civilians can. For example, while most people must wait five years after getting their green card to apply for U.S. citizenship, the exceptions described below allow certain military service people or veterans to apply sooner; or even without having obtained a green card at all.
If you served honorably in the U.S. Armed Forces for at least one year in total (even if the year was broken up into different time periods) you can apply for citizenship just as soon as you get your green card. It doesn't matter whether the United States was at war during your service, which is why you'll sometimes hear this exception called "peacetime naturalization."
You'll need to be age 18 or older to apply, and you'll need to meet the other standard criteria for naturalization. However, you won't have to pay the usual N-400 application fee. But you will have to complete and file an additional form, called USCIS Form N-426, Request for Certification of Military or Naval Service. This form will require input and a signature from a U.S. military official.
If you have already been discharged from the military, the discharge must have been honorable, and you'll need to hurry to use this exception: If more than six months pass after your discharge and before you file your application for naturalization, you'll be back to following the five-year rule that applies to civilian applicants. But see the next section of this article, which could help you if you served during wartime. The definition of "honorable" was clarified in 2022 to include "Uncharacterized discharges."
(See the Immigration and Nationality Act at I.N.A. § 328 or 8 U.S.C. § 1439.)
You don't even need a green card (lawful permanent residence) to apply for U.S. citizenship if you served honorably and on active duty with the U.S. Armed Forces during one of the wars or conflicts named below. You can go straight from being an undocumented or illegal immigrant to applying for and receiving U.S. citizenship. Of course, if you already have a green card, you can also use this section to avoid the five-year period that most people must wait before applying for naturalization. (See I.N.A. § 329, 8 U.S.C. § 1440.)
You must, however, have enlisted (signed up) while you were still on U.S. territory. The recognized U.S. territories include the Canal Zone, American Samoa, Swains Island, and a noncommercial U.S. ship.
Here are the conflicts that are designated as qualifying someone for immediate U.S. citizenship:
If you enlisted during one of the times of war listed above, you will be allowed to apply for naturalization after only one day of military service, and you can apply while you're overseas (or in the United States).
Most of the usual requirements for naturalization will apply to you. However, unlike ordinary applicants you can be approved without regard to your age or how much time you have recently spent physically present in the United States, and in the state in which your application will be processed.
In addition, you won't have to pay the usual N-400 application fee. But you will have to file an additional form: USCIS Form N-426, Request for Certification of Military or Naval Service. This form will require input and a signature from a U.S. military official.
For anyone who thinks they've spotted a loophole allowing someone to sign up for the U.S. military, serve for only a day or two, and walk away as a U.S. citizen, we've got bad news. For one thing, USCIS will wait until the new recruit is done with basic training to complete the citizenship application process. More importantly, you'll need to honorably complete your term of military service in order to hold onto U.S. citizenship gained in this way. If you don't, your U.S. citizenship will be taken away.
You might, if you're still serving with the military, be worried about what would happen to your family members if you were to be killed in the line of duty. Fortunately, the law contains provisions to help them, whether or not you are a U.S. citizen.
If you are a U.S. citizen, your spouse, parents, and children would, upon your death during active duty with the U.S. Armed Forces, be eligible to apply for green cards or, if they already have green cards, to apply for immediate U.S. citizenship.
If you are not a U.S. citizen, and you die from injury or disease caused during active duty with the U.S. Armed Forces during one of the periods of military hostilities listed above, your next of kin would be able to apply for citizenship for you. The closest relative should be the one to file the application, using USCIS Form N-644. That person must apply within two years of the military person's death. (See I.N.A. § 329, 8 U.S.C. § 1440.)
Then, based on your having become a citizen, your immediate family members (spouse, parents, unmarried children under 21) would be able to apply for family-based green cards.
Until 2020, USCIS policy was to have all members of the military file the application for naturalization by mail. However, you now have the choice of filing it online. You'll find the address on the USCIS website, together with the instructions for Form N-400.
If you're currently serving in the military, talk to the designated point of contact (POC) at your military installation and see the USCIS Web page on Citizenship for Family Members. For details on various aspects of naturalization for military members, see Volume 12, Part I of the USCIS Policy Manual.
For details on the procedures for applying for naturalization, see Becoming a U.S. Citizen: A Guide to the Law, Exam, & Interview, by Ilona Bray (Nolo). And if you'd like a personal analysis of your situation or help with the application process, consult an experienced immigration attorney. You can see profiles of attorneys in your area on the Nolo Lawyer Directory.