USS Corsica

"From April, 1944 to April, 1945 the beautiful French island of Corsica was transformed into what Dominique Taddei has aptly termed the USS Corsica, a huge terrestrial aircraft carrier that became the landing strip for nearly the entire 12th Air Force and even some 15th Air Force units during this period. The military escalation on Corsica reached a peak in the summer of 1944 as the Allies geared-up for their final major invasion of Europe, Operation Dragoon, or D-Day Southern France on August 15, 1944.

German and Italian forces overran southern France nearly two years earlier in response to the first major Allied offensive in North Africa, Operation Torch in November, 1942, but most of the German forces were diverted north in response to the Normandy D-Day invasion so that by D-Day Southern France, there were only four German divisions to face 11 divisions of the French 1st Army commanded by General Jean de Lattre de Tassigny and 12 divisions of the American 7th Army commanded by General Alexander Patch. On Corsica, the French 1st and U.S. 7th Armies were united and activated on August 1, 1944 to form the U.S. 6th Army Group also known as the Dragoon Force. Lt. General Jacob Devers was commander of the 6th Army Group.

Although D-Day at Normandy was the largest single-day amphibious invasion force in history with ~150,000 troops, the D-Day Southern France invasion put over twice as many troops (~325,000) on French soil between August 15-25, 1944. Most importantly, the news of the Southern France invasion emboldened the French resistance, resulting in the liberation of Paris on August 25, 1944.

After the invasion on August 15, Dever's 6th Army Group quickly advanced up the Rhone River valley and met General Patton's 3rd Army near Dijon, France on September 9, 1944. The 7th Army advance from southern France to the Vosges Mountains actually proceeded further and faster than the much more celebrated advance of Patton's 3rd Army from Normandy. Additionally, the 7th Army cleared the Alsace region, collapsed the Colmar Pocket, crossed the Rhine River, and captured Hitler's Alpine residence. It was General Devers who accepted the surrender of German forces in Austria on May 6, 1945. The D-Day forces from Southern France and Normandy effectively complemented one another as they approached Germany, particularly by the winter of 1944-5.

An essential aspect of Dragoon was that the French 1st Army (known at the time as French Army B) also liberated the ports of Marseilles and Toulon on August 28, 1944 making it possible to supply the Allied European forces with about one third of their supplies for the rest of the war.

Engineering was critical to establish these transportation and supply routes because Allied and Axis forces continually tried to impede each other's progress by destroying bridges that needed to be rebuilt. In Italy, where the 12th Air Force, as part of the Mediterranean Allied Air Force (MAAF) provided support for Allied ground forces, blowing-up and rebuilding bridges was a constant tactical theme."

Words provided by: Don Kaiser. 
Images available at: http://www.wreckshot.com