how old do you have to be to join military
But if you want some information now, below is a summary of the US Army's enlistment rules. Click on a subject area below to go to a page with more details. Age and Parental Permission To join the US Army you must be 17 years old or older and not have reached your 35th birthday. Name and SSN You must have a name and a valid Social Security number that goes with your name. Citizenship You must be a born, naturalized, or otherwise legal citizen of the United States. Education