Robert Lochner (engineer) harbours to Franklin Roosevelt and Winston Churchill. The decision to go ahead was taken and full-scale trials of the floating breakwater started in April 1944. During the trial, an onshore gale produced heavy seas, but Robert's bombardons calmed the waves effectively. Assembling two Mulberry Harbours the day after the landings on 7 June 1944 was one of the most remarkable engineering feats in history. A total of 1,500,000 tons of harbour equipment had to be taken across the channel in an operation involving 150 Allied tugs, and by D-Day 'plus 12', most of Lochner's concrete breakwaters were in position. On
Scuttling of the French fleet at Toulon the French fleet would be largely disarmed and confined to its harbours, under French control. The Allies were concerned that the fleet, which included some of the most advanced warships of the time, might fall into enemy hands and so the British attacked the French Fleet at Mers-el-Kebir on 3 July 1940 and at the Battle of Dakar on 23 September 1940. On 8 November 1942 the Allies invaded French North Africa (Operation Torch). It may be that General Dwight Eisenhower, with the support of President of the United States Franklin D. Roosevelt and British Prime Minister Winston Churchill, made