Fleet actions account for only part of a navy's work. Sloops could escort convoys, support troop movements, sweep mines, operate on distant stations, and demonstrate a continuing national presence before a crisis became a war. The modern Royal Navy's Batch 2 River-class patrol vessels offer a comparison, although a presence ship may still need enough armament to operate confidently in high-tension waters. The comparison concerns mission and political utility rather than treating the modern vessels as copies of interwar designs.
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Peacetime presence and wartime escort
The central sloop trade-off was accepting limited fleet-combat power in exchange for a ship useful for escorts, minesweeping, overseas presence, and routine naval work.