sentences:  As British forces on the southeast coast of Britain regrouped, remanned and repaired following heavy losses at Zeebrugge, Keyes planned a return to Ostend with the intention of blocking the canal and consequently severing Bruges from the sea, closing the harbour and trapping the 18 U-boats and 25 destroyers present for months to come.Volunteers from among the force that had failed in April aided the planning with advice based on their experience on the previous operation.Among these volunteers were Lieutenant-Commander Henry Hardy of , Commander Alfred Godsal, former captain of , and "Brilliant"s first lieutenant Victor Crutchley.