Regiment Allied forces at Gold and Juno faced the following elements of the 352nd Infantry Division: 914th Grenadier Regiment 915th Grenadier Regiment 916th Grenadier Regiment 352nd Artillery Regiment Forces around Caen Allied forces attacking Gold, Juno, and Sword Beaches faced the following German units: 716th Static Infantry Division under Generalleutnant Wilhelm Richter. At 7,000 troops, the division was significantly understrength. 736th Infantry Regiment 1716th Artillery Regiment 21st Panzer Division, (south of Caen) under Generalmajor Edgar Feuchtinger included 146 tanks and 50 assault guns, plus supporting infantry and artillery. 100th Panzer Regiment (at Falaise under Hermann von Oppeln-Bronikowski; renamed 22nd Panzer Regiment in May 1944 to avoid confusion with 100th Panzer Battalion) 125th Panzergrenadier Regiment(under Hans von Luck from April 1944) 192nd Panzergrenadier Regiment 155th Panzer Artillery Regiment Atlantic Wall Alarmed by the raids on St Nazaire and Dieppe in 1942, Hitler had ordered the construction of fortifications all along the Atlantic coast, from Spain to Norway, to protect against an expected Allied invasion. He envisioned 15,000 emplacements manned by 300,000 troops, but shortages, particularly of concrete and manpower, meant that most of the strongpoints were never built. As it was expected to be the site of the invasion, the Pas de Calais was heavily defended. In the Normandy area, the best fortifications were concentrated at the port facilities at Cherbourg and Saint-Malo. Rommel was assigned to oversee the construction of further fortifications along the expected invasion front, which stretched from the Netherlands to Cherbourg, and was given command of the newly re-formed Army Group B, which included the 7th Army, the 15th Army, and the forces guarding the Netherlands. Reserves for this group included the 2nd, 21st, and 116th Panzer divisions. Rommel believed that the Normandy coast could be a possible landing point for the invasion, so he ordered the construction of extensive defensive works along that shore. In addition to concrete gun emplacements at strategic points along the coast, he ordered wooden stakes, metal tripods, mines, and large anti-tank obstacles to be placed on the beaches to delay the approach of landing craft and impede the movement of tanks. Expecting the Allies to land at high tide so that the infantry would spend less time exposed on the beach, he ordered many of these obstacles to be placed at the high water mark. Tangles of barbed wire, booby traps, and the removal of ground cover made the approach hazardous