Older escorts still matter in secondary theaters

Reserve ships gain value when missions are judged by the threat actually present rather than by the most demanding fleet battle. Older vessels can escort convoys, transport troops, and cover third- or fourth-tier theaters, freeing first-line combatants for concentration elsewhere. In a Cold War example, North Atlantic convoys might need the newest escorts, while South Atlantic routes would still require anti-submarine gear, communications, and some air defence. Mobilizing such ships before hostilities can also support deterrence, answering the claim that a rapidly nuclear war would leave no time to use reserves.