There were also inland defenses. The German army flooded fields (to drown paratroopers, this worked very well) they also had the natural defenses of the Normandy hedgerows, these proved weaknesses in the allied tanks and perfect for ambushes.
on the beaches there were AT mines, tank spikes and holes dug into the beach (a fully equipt soldier would drown in these, the british did this in fear of a German invasion)
These defenses were so good that even the preliminary bombardment by the air forces and naval forces couldn't dislodge the defenders as plannedANSWERSpecifically, the defence of the Normandy coast was provided by the German 7th Army and the 5th Army located around Caen. The surf line was ridden with all sorts of contraptions such as wooden poles with naval mines on top, X shaped iron hedges, "Belgian gates" (iron A frames meant to stop landing craft), AT and anti-personnel mines and barbed wire.
The overhangs were indeed defended from concrete bunkers and machine-gun nests of which many had survived the initial air and naval bombardment, especially on the American landing beaches, and further inland there were flooded marshes and artillery positions.
One particular defence was 'Rommels Asparagus', spikes designed to impale paratroops.
During World War II, the 'D-Day' event took place on June 6, 1944. On this day, Allied troops made an amphibious landing on the northern coast of France, in the region of Normandy. Seizing a beach-head in the face of sometimes fierce opposition from German defenders, the Allied troops ensured that 'D-Day' was a success, although much bitter fighting lay ahead before the Allies would succeed in advancing towards Germany and ending the war.
The outcome from Normandy broke down the rest of the German Army. Normandy was the last strong hold controlled by the German Army, it was the last hope for them to continue to control for supplies. Instead, the allied forces took it over, by wearing down the German army and allowing the Allies to get support. Also it allowed territory for the Allies to be able to reach different areas of interest easier and now safely
The Allies chose to invade North Africa before attempting a direct invasion of German-occupied France for several reasons. The first: their forces were not yet strong enough to face the full weight of the German Army on the Continent. Secondly, British military leaders argued persuasively that clearing the Mediterranean of enemy forces would expose the "soft underbelly" of the Axis in Europe.