Almost all of Bismarck's diplomatic activities were done urgently before the war.

There is only one reason, he is unwilling to give the Austrians time to react, and if they really start a diplomatic war, if both sides spend a year together, Bismarck may not be able to beat Schwarzenberg, not because his ability is not enough, but Austria's influence has always been greater than that of Prussia.

Therefore he did not give Austria the opportunity to form an alliance, so that the war broke out suddenly, and it looked like an encounter.

In reality, however, Bismarck formed a short-term alliance for Prussia, and he signed an alliance agreement with Italy for a period of three months, and it was evident that the Italians understood the spirit and knew that Prussia would fight a war against Austria within three months.

Why did the Italians want to, because the government of the Kingdom of Sardinia, led by Cavour, has been working to unify Italy, excluding the factor of ability, and in the courage of unifying the country, Cavour is the same as Bismarck.

Cavour's government was not unaware of its own lack of strength, and knew that it could not defeat Austria on its own, so Cavour had already found a good backer for the Kingdom of Sardinia, and Cavour established an alliance with France in exchange for French support for the Kingdom of Sardinia.

One of the reasons why Italy was able to persuade France was that Louis Napoleon, the ruling French party, had joined the charcoal party that sought the unification of Italy and had close ties with Italy; Second, the royal relationship between France and Austria cannot compare with the actual interests, Savoy and Nice, which were ceded by Italy, both of which belong to the rich silkworm production area, and are closely related to Lyon, an important industrial area of France; The third reason is that Austria is too large for France, and its population has already surpassed that of France, so it is better for such an Austria to be weakened.

With the support of France, the Kingdom of Sardinia appeared to be emboldened, so when Prussia declared war on Austria. The Kingdom of Sardinia declared war on Austria and quickly marched into northern Italy, marching into the Kingdom of Lombard and Vinesia.

France could not be co-opted, especially after Prussia and Britain openly allied, which had caused dissatisfaction in France, and it was already the best result for France not to ally with Austria to attack Prussia, Bismarck had repeatedly tested the attitude of Prime Minister Napoleon, and repeatedly hinted that Napoleon's Austro-Prussian war would be a long-term war, confirming that Prime Minister Napoleon hoped that this war of attrition would take place.

France could not be co-opted, but France would remain neutral for a short time, at least until Prussia completely crushed Austria.

Russia also cannot be co-opted, Russia does not need to be co-opted, Russia will take advantage of the fire to rob, if Austria wins, Russia will divide Prussian Poland, if Prussia wins, Russia will take back Western Ukraine.

In southern Austria, Bismarck also co-opted a small country, Greece and Bulgaria. The two countries, ruled by the Chinese prince Zhou Chenggong Connie and his wife, were divided into two parts by the last Austrian-backed Serbian invasion, and Bismarck supported the capture of Macedonia and united the two countries.

When Bismarck was exiled by the king to the Ottomans as consul, he was not idle, but established relations with the dignitaries of the surrounding countries, analyzed the situation in each country, and analyzed the political needs and possible help for Prussia.

Within the German Confederation, Prussia also attracted a lot of helpers, such as Oldenburg, Mecklenburg-Schwerin, Mecklenburg-Strellitz and Braunschweig, as well as the three free cities of Hamburg, Bremen and Lübeck. But Austria was supported by the big states in Germany, and it can be said that the states with a population of more than one million in Germany, with the exception of Prussia, were on the side of Austria. Saxony, Bavaria, Baden, Württemberg, Hanover, Hesse-Kassel and Hesse-Darmstadt all supported Austria.

The main reason for the support of Austria in the Central German States was the fear of annexation by Prussia, and they preferred to be led by Austria in a loose federation rather than to form a unified state with Prussia, with which they were still reluctant to merge even though they had formed a customs union with Prussia and were economically united. The South German states, such as Fabaria, had closer ties with Austria, they were all Catholic countries, and the Thirty Years' War in history was a religious civil war, and they had long been enemies of the Protestant princes represented by Prussia, and their hatred was irresolvable.

Since even Germany was mainly in favor of Austria, the whole world did not think very favorably of Prussia, because they did not show much superiority over Austria.

Austria's size, Austria's allies, Austria's influence, none of which Prussia had an advantage.

It was in this context that the war took place, and the process shook everyone's jaws.

As in history, the Prussian coalition quickly achieved results. In particular, the Polish army led by Moltke is eye-catching, better than the Ottoman army under his command, both in terms of training level and combat quality, it is a step higher than the Ottoman army, and it is still more flexible and mobile, which can make Moltke handy to give full play to his command ability.

As soon as the war began, the Polish army behaved more eye-catching than the Prussian army, and according to Moltke's battle plan drawn up long ago, the armies were assembled like machines, standby, set off, attacked, and every step was carried out in accordance with the steps of the exercise.

The Austrian army, on the other hand, was still in a chaotic build-up, and they had not yet concentrated their forces, and the Polish army had already gathered in the border area by train, and with an absolute superiority of forces, it invaded the Kingdom of Bohemia, swept east of the Balkha Thousand Mountains, and captured Lviv, Volyn and other places. The main force broke through from the Sudetenland and the Thousand Mountains of the Western Balkha, and advanced along the Morava River towards the Danube, with Vienna downstream.

The Austrians and their allies were disorganized, or rather not as swift as the Prussian army. Without waiting for Austria to join the Allies, the Prussian army attacked Austria's allies from the north, and the Prussian neighbors such as Hanover, Hesse-Gassell, and Saxony were unable to resist the Prussian standing army, and quickly routed and retreated into Austria.

The only thing Austria could move quickly was its standing army, partly into Bohemia to attack the Polish army, and partly into northern Italy to fight against the menacing Sardinian army.

In fact, the army of the Kingdom of Sardinia at this time was evaluated as numerous and well-equipped, because the economic development level of northern Italy was good, and the taxes of the Kingdom of Vinesia, which Austria occupied, were higher than those of the Duchy of Austria. Therefore, the Kingdom of Sardinia, with Piedmont, Genoa and other richest Italian regions as its core territory, was still relatively wealthy, and the Italian population had a high fertility rate and a large number of young soldiers, so it was easy to form a sizable army.

Therefore, the king of Sardinia, Manuel II, personally commanded an army of 120,000 and rushed to northern Italy, but the result was defeated by the Austrian army, which numbered only 60,000.

This was only the first week of the war, which annoyed Bismarck, who said that he knew that Italy would be defeated, but felt that the Italians would have to resist a little and that they could share some of the pressure on the Prussian army.

After the Austrian army won the victory, it did not even dare to pursue it, and even took the initiative to abandon Venice, leaving only a small number of troops to garrison, and transferring most of the troops back to the Danube to support the urgent situation in the northern theater and to guard against the Polish assault.

The combined Greek and Bulgarian forces on the southern front attacked Macedonia from both eastern and western directions, and the situation in Macedonia was very peculiar.

He was supposed to be separated from Greece by the advance of the Serbian army, but Serbia did not get Macedonia after that, but in the balance of the great powers, the former Grand Duke of Serbia, Mikhailo Obrenović III, became the Grand Duke of Macedonia.

Mikhailo Obrenovich III was overthrown by a coup d'état by Alexander KaragĂorgievich, and now Karajorgiević easily led Serbia to victory over Greece and capture Macedonia, and the great powers, including Austria, which encouraged him to attack Greece, have pushed his political enemies to the throne of Macedonia. He is tantamount to working hard to support an enemy for himself, and his heart is more sad than eating a dead fly, if he eats a live fly.

However, when Greece attacked Macedonia, he was forced to enter Macedonia at the same time, and Austria promised him to support Serbia's post-war annexation of Macedonia, but the time was running out. Because the Serbian army at this time is no longer the opponent of the combined forces of Greece and Bulgaria, Serbia is a landlocked country without access to the sea, although Bulgaria is also an agricultural country, but the Bulgarians have always been known for their belligerence, and Greece is also a country with a high degree of industrialization. As a result, the Serbian army was soon expelled from Macedonia.

The Greeks quickly signed a treaty with Serbia, in which Serbia recognized Macedonia as part of Greece and Bulgaria and renounced any claim to Macedonia.

At this time, Austria was too busy dealing with Prussia and Poland to pay attention to the Balkans, Austria did not dispute the Balkan question, and in order to stabilize Greece, it signed an agreement with Greece and Bulgaria to recognize their possession of Macedonia.

After Greece and Bulgaria divided the territory of Macedonia, the nationalists of both countries were satisfied, they forgot their previous dissatisfaction with the Greek king, and under the impetus of the royal couple, Bulgaria and Greece formed a united kingdom in an atmosphere of victory, and a United Kingdom constitution was introduced, stipulating that the two countries were independent states, but formed an inseparable association, and the throne would be inherited by a male member of the king's family.