Is it possible to join the US Marines without a US citizenship or green card? I'm keen on enlisting, but I don't know if I would ever get a chance to do so. Back when I was attending university, I've been to the recruitment office to talk about enlisting. Unfortunately my request was turned down and that was before Sept 11th. I've tried to volunteer again after that, and again they said no. So here I am, with the maximum age requirement just around the corner, hoping for a window of opportunity. Perhaps there has been a change of recruitment policy, I don't know. But I do know that I'll keep trying until age catches up. Oh if it helps, I have relatives who are US citizens. I don't know if that will help with immigration laws or the enlisting requirements. We'll see.