Look, it's not a simple yes or no kinda thing. Depends on which navy we're talkin' about, what boat you're on, and whether you're actually out at sea or sitting in port. Sure, you've seen the movies where guys pop open a cold one after a long day underwater—that's mostly Hollywood. Reality is way more complicated. Most modern navies? They run "dry ship" policies when you're underway. But different countries do things their own way, and even different subs within the same navy might have slightly different rules. There are a few big reasons why booze gets the boot on subs during operations: Believe it or not, yeah—some have allowed it in the past, especially in port or during specific downtime. The Royal Navy is probably the most famous example. Giving sailors—including submariners—booze has been a thing for centuries. The Royal Navy's "rum ration" was a daily shot of rum for everyone. Supposedly boosted morale and helped with the brutal conditions. Submariners in that navy used to get rum or beer as part of the deal. But that officially ended in 1970. Some exceptions lingered for sub crews a bit longer, but honestly? It's ancient history now. Rarely. Even navies that allow some alcohol? Almost never during a patrol. Maybe you'll see something for a "crossing the line" ceremony when you cross the equator, or a holiday thing. But those are few and far between, and there's always supervision. You might get one or two drinks, tops. The punishment? Brutal. In the US Navy, you're looking at: Yeah, absolutely. When the sub's in port and crew's on liberty, they can drink in moderation like anyone else. The ban is only on the submarine itself or while you're on duty. Nope. Most big navies—US, UK, Australia, Canada—are strict dry-ship. But smaller navies or places with different cultural norms might be more relaxed. Still, the trend worldwide is toward banning it for safety. Multiple reasons: safety concerns in modern subs, need for a more professional crew, and the fact that alcohol in a closed, high-pressure environment is just a bad idea. It phased out over time. Depends on the navy. Some allow it as a morale thing, others ban it because trace alcohol or packaging waste is an issue. The US Navy generally says no. "In my 20 years of service, I never once saw alcohol on board a submarine during a patrol. The risks are simply too high. One person making a bad decision in a reactor compartment or a maneuvering room can endanger the entire boat. The policy is not about being punitive; it's about survival. We need everyone at 100% capacity, 100% of the time."Can submariners drink alcohol
Why is alcohol often banned on submarines?
Are there any navies that allow alcohol on submarines?
Navy
Policy at Sea (Patrol)
Policy in Port
Notes
United States Navy
Completely Dry
Dry (on board)
Zero tolerance for alcohol on board at any time. A "dry ship" policy has been in effect for decades.
Royal Navy (UK)
Dry (since 2010)
Historically allowed a "tot" of rum (Grog) or beer. Now generally dry.
Famously ended the daily rum ration in 1970. Beer was allowed for a time but is now rare. Current policy is effectively dry at sea.
Royal Australian Navy
Dry
Restricted, but may be allowed under strict supervision.
Policies are stringent, mirroring US Navy standards.
Russian Navy
Generally Dry
Historically allowed, but modern policies are stricter.
Reports suggest limited consumption may occur, but official policy is prohibition during operations.
What about the historical "rum ration"?
Are there any exceptions for special occasions?
What happens if a submariner is caught drinking?
Frequently Asked Questions
Can submariners drink alcohol while on shore leave?
Is the alcohol ban the same for all countries?
Why did the Royal Navy stop the rum ration on submarines?
Can submariners have non-alcoholic beer?
Expert Insight: A Submarine Commander's Perspective
Checklist: What a Submariner Can Do Instead
Short Summary
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