Submarines Have Special Connectivity Needs
By Captain James H. Patton Jr., U.S. Navy (Retired)
Submariners and others who live or die through stealth (or the lack thereof) understand in a visceral sense their needs for and means of connectivity with other entities. Their intuition has been acquired
through long immersion in a common culture. Early in my own submarining career, I was taught that two of the greatest mistakes I could make would be to act on my intuition early in my training but ignore it later, at a senior level.
For submarines, unlike most other users, the distinction between passive (listen only) and active connectivity is as important as that between passive and active sonars. Along with its two-way exchange of information, active connectivity involves some degree of compromising the sub's covert posture.