Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Mission Chicago was a pre-dawn glider-borne combat assault in the American airborne landings in Normandy, made by elements of the U.S. 101st Airborne Division on the early morning of June 6, 1944. It was part of Operation Neptune, the assault portion of the Allied invasion of France, Operation Overlord. Originally slated to be the main assault for the 101st Airborne, the glider operation instead became the first reinforcement mission after the main parachute combat assault, mission Albany. Because the area of responsibility for the division was in close proximity to Utah Beach, the use of glider reinforcement was limited in scale, with most division support units transported by sea. The 101st Airborne Division''s objectives for were to secure the four causeway exits behind Utah Beach, destroy a German coastal artillery battery at Saint-Martin-de-Varreville, capture buildings nearby at Mezires believed used as barracks and a command post for the artillery battery, capture the Douve River lock at la Barquette and capture two footbridges spanning the Douve River at la Porte opposite Brevands.