Can believers of Jehovah work for the navy?

So my husband asked me how I would feel about him joining the navy, granted he wouldn’t actually be going on a ship to fight he would be working in construction for the navy but not harming anyone, I am a little conflicted about it because we want our own house and not have to worry so much about finances. He recently lost his job and the way this economy is; it’s hard for him to get work right now. Neither of us are baptized but at the same time we are wanting to get closer to Jehovah and hopefully get baptized but I jus thought since he wouldn’t be going to war and just be doing construction that it would be okay?