Retaking the Channel Islands would use overwhelming post-Normandy sea and air power

What naval task force would Britain use to retake the Channel Islands instead of launching Market Garden?

Use the battleships, cruisers, destroyers, and aircraft already in theatre after Normandy to isolate the garrison and land away from the towns.

Battleships, cruisers, destroyers, and aircraft already assembled for the Normandy campaign could be reused. Overwhelming firepower would isolate the islands and suppress resistance before troops landed on less populated beaches. The objective would be to convince the garrison that it was surrounded without shelling the towns unnecessarily. The panel notes that the required assets would already be in theatre after Normandy, though it questions the strategic value of diverting them.