Not all subs are created equal.
Here's What You Need to Remember: Here's how to rate history's worst submarines. One, did a sub's basic design, the quality of its construction, or its expense cancel out whatever tactical or operational promise it held? Two, did its crew egregiously fail to execute assigned duties, whether out of incompetence, carelessness, or faulty doctrine or tactics? And three, was its performance so deficient that it set back national power...
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