Italy became Germany's worst ally in the late World War II, and without one, the sudden surrender really caught Germany off guard. Since Italy's voluntary surrender, the German superiority on the battlefield has also disappeared in an instant, for reasons of allies and the reasons of the Nazi Germans themselves. What is certain, however, is that after italy's surrender, the Anglo-American Allies were given the opportunity to attack the European continent for the first time and were able to successfully thwart the Germans.
At that time, the pressure on the Eastern Front was enormous, so Stalin constantly asked Britain and the United States to open a second battlefield, but Britain and the United States did not "hunt down" the Nazi Germans from the position of surrendered Italy, but readjusted their tactics, and after a year, they really opened up the second battlefield and launched a strong counteroffensive on the European continent.
In fact, the Allies wanted to break the Axis's solid front from the "surrender gap" on the Italian side, because most of the Italian soldiers in the Mediterranean were not good at fighting, and the German soldiers accounted for only a very small part. Due to italy's surrender, the Allies could attack the belly of the European continent from the excellent geographical location of the Italian side, so that they could directly attack the German mainland without having to take a long detour.
Not only that, but launching an attack on the Germans from italy's position and cutting off the German rear road on the Eastern Front was a two-pronged way, but until the end, the Anglo-American coalition army did not adopt such a method of combat.
You know, most of the British and French allies are mechanized troops, each infantry division has a large number of cars and other means of transport, can once again be able to transport all the soldiers away, but this mechanized advantage in Italy's geographical location has become a weakness, because there are many mountain passes on the Italian side, once the German army steadily holds these mountain passes, then a large number of mechanized troops have become chicken ribs, not only has no effect, but also will be "turned away" by Germany.
Since it was possible to invade the heartland of Europe from Italy, but a large number of mechanized troops became "difficult soldiers", in the case of advantages turning disadvantages, the British and American Allies did not attack here in Italy, so the British and American Allies began the attack on Germany from another place.
So the Allies launched an attack on Germany from the west of France.
Why did the Allies choose to attack the Germans in western France? This was because launching a counteroffensive against Germany from Within France would enhance the morale of the soldiers and the self-confidence of the French soldiers, thereby strengthening the allied combat capabilities. And the west of France is close to the German Ruhr industrial area, so that the Allies can carry out military strikes on the most important parts of the German army, as long as the Ruhr industrial area is destroyed, then Germany's combat capabilities will be greatly weakened, and its industrial capabilities will be completely destroyed.
Therefore, even after the surrender of Italy, the Allies did not take advantage of Italy first, but judged the situation, calmly looked at the advantages and disadvantages of the European battlefield, and carried out the most powerful military counteroffensive against the German army.
In this way, more solid victories could be achieved and the pressure on the Soviet Union on the Eastern Front could be well alleviated.