Escort quantity becomes an operational quality

The usual attribution of the phrase 'quantity has a quality all its own' to Joseph Stalin is questionable. An alternative attribution points to analyst Thomas A. Callaghan Jr. in 1979, leaving the quotation's history uncertain. The phrase nevertheless describes a real naval problem because no single high-performance ship can patrol many routes or escort many convoys at once. A large body of affordable small ships creates coverage, persistence, and replacement capacity that a tiny elite force cannot supply. Quantity therefore becomes a force-structure quality when the fleet must be present in many places simultaneously.