TALLIN, Estonia – It seems impossibly cramped and somehow elegant at the same time. Inside the Estonian submarine Lembit, pristine maroon curtains made of a velvet-like material cover the tiny officers’ quarters. Wood paneling separates the sections of the sub from plump, cushioned chairs that sit in front of wooden tables, one with a leather-bound book on it.

Then at the bow, sit two torpedo tubes, one loaded. This is a warship, after all.