Robert Lochner (engineer) major element, the Mulberry Harbour. One of the major challenges facing the D-Day landings was to secure a European port for the delivery of essential supplies, but instead of capturing an existing port, the Allies decided on an audacious plan to build temporary harbours off the coast of Normandy. The big challenge in the rough seas of the English Channel was to create a breakwater to protect the concrete landings from the vicious waves and Robert Lochner was the man chosen by Churchill to lead a group of scientists known as The Wheezers And Dodgers to solve this challenge. The
Provisional Government of the French Republic on 3 June 1944, the day before Charles de Gaulle arrived in London from Algiers on Winston Churchill's invitation, and three days before D-Day. The CFLN itself had been created exactly one year earlier through the uniting of de Gaulle's ("Comité national français", or CNF) and Henri Giraud's organisations. Among its most immediate concerns were to ensure that France did not come under allied military administration, preserving the sovereignty of France and freeing allied troops for fighting on the front. After the liberation of Paris on 25 August 1944, it moved back to the capital, establishing a new "national unanimity"