Hungary is a prime example of this, just a few days after the formal annexation of the Soviet Union, the Red Army was able to obtain a certain amount of material supplies and even military replenishment from the local area, although some aristocratic landlords and capitalists who were unwilling to flee abroad resisted, but it was difficult to incite the masses of the lower strata of the population, how could they have the ability to confront the powerful Red Army by themselves and their limited number of dogs? At most, it's just to create some uneasiness......

The Hungarians, who did not belong to the Slavic nation, were "merged" so quickly, and the Serbs, who belonged to the Slavs, were naturally not spared, although the Serbs have always been known for their strong nationalist sentiments, but communism is the natural nemesis of nationalism, not to mention the Slavic relatives, which is even more difficult to resist. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 Of course, the main reason is that the original Serbian government was corrupt and incompetent, and the people could no longer tolerate it, which gave the Soviet Union a chance.

In contrast, the government of the Republic of Finland, which has won the support of the people with its rapid economic development and the gap between the rich and the poor in the country has not been excessively widened in the past few years, has succeeded in "surrendering the army without a fight" and avoided the bad luck of being re-annexed to Russia......

Seeing that the situation was not good, the German General Staff hurriedly sent the army group stationed in the Czech Republic to seize Slovakia in order to protect the flank security of the main force invading the Soviet Union.

At this time, the Soviet army had also invaded this small mountain country, and fierce fighting was inevitable. The mountainous terrain was not conducive to the development of large corps, so the battlefield was very fragmented, and the result was naturally "the brave wins when they meet on a narrow road", and the Soviet army, which had always been more accustomed to being crushed by the sea of people, was quickly defeated by the more elite German army, and in less than a month, the number of dead and captured troops reached more than 100,000, and the remnants of the army withdrew from Slovakia in disarray......

However, on the more critical main battlefield of the Eastern European Plain, Marshal Frunze, who had made great strides compared with the period of the Great Patriotic War, dealt a heavy blow to the arrogant Germans; with the cooperation of the Budyonny Cavalry Front, he commanded the Central Front of the Soviet Red Army, which was the largest in human history, and surrounded more than 700,000 troops of the overly prominent Central German Army.

Although hundreds of thousands of German troops desperately broke through, the Red Army fought more and more, and in the end, the German commander could only lead the remnants of more than 300,000 subordinates to surrender to the Soviet army in despair......

After the surrender, the German commanders learned that in order to eliminate them, the Soviet Red Army High Command mobilized a total of more than 3 million Red Army, tens of thousands of artillery pieces (not counting mortars) and more than 2,000 aircraft. Of course, due to the lack of logistical transportation capacity, especially road transportation, the Soviet Union could only achieve this level when it was fighting on the internal line and supported by the railway network.

And it is worth mentioning that although this crucial victory was won, the Soviet Red Army also paid a considerable price, and Frunze's Central Front Army Group was fine, with only more than 200,000 dead and wounded, which was nothing to the Central Front Army Group, which had ten times the total strength. The point was that the Budyonny cavalry front, which was responsible for cutting off the connection between the German army in the north and the German army in the center, suffered heavy losses because it was flanked by two German troops, and the fragile defects of the cavalry were completely exposed under the sharp heavy fire of the German army, which was much stronger than in the last Great Patriotic War.

According to incomplete statistics after the war, the number of casualties of the cavalry front exceeded 300,000, which was larger than that of the central front army, and it was only a front army of several hundred thousand people. What's worse is that most of the hundreds of thousands of qualified horses that have been saved up in the past few years have been lost, and unlike most of the wounded soldiers who can recover and return to the team, after the horses are injured, most of them can only be slaughtered and eaten for meat. The rapid pace of loss, the time it takes to replenish, and the high cost of cultivation are completely unable to meet the needs of a modern world war, and Budyonny, the last cavalry general in the world, has to painfully admit that cavalry is no longer suitable as the main force.

Although he was in great pain, out of the consciousness of a Bolshevik, Budyonny still took the initiative to propose to his mentor to abolish the formation of the cavalry front, and the mentor sighed after hearing this, but finally agreed to Budyonny's proposal.

However, the curtain call of the cavalry front still wrote a strong stroke in the world's military history, not only because they made an indispensable and significant contribution to the annihilation of more than 700,000 German troops, but also because they experimentally used a new type of weapon that quickly changed the shape of the war in this battle, which the Soviet Red Army called - armored tractor, in fact, the tank in history......

Due to the early appearance of storm commando tactics and submachine guns, mortars and other trench warfare weapons, the introduction of tanks has been delayed for a long time, but under the premise that wheeled armored vehicles have already appeared, it is not difficult to generate such inspiration. In 1911, a demobilized Red Army machine gunner was assigned by the organization to train as a tractor driver, and one day when he was inspecting the steel monster (tracked tractor) he was driving, he suddenly had a thought, "If you drive such a big guy to the enemy, I don't know what the effect will be?" ”

As a veteran, the more the Bolshevik thought about it, the more he felt that he could try this idea, and it was not difficult to install machine guns and even artillery with the size of a tracked tractor, and as for protection, steel plates could be added around it, so that it would become a mobile fortress, which the infantry could not resist at all. And the tracks also give it the ability to cross the country at least as well as the cavalry, which means that it can keep up with the troops in most terrains and climates, which is too important!

The veteran, Antonov, immediately called his old company commander, who was still serving in the army, and told him about his idea, and the latter's eyes lit up and he immediately reported to his superiors. Soviet Russia at this time was far less bureaucratic than it was a few decades later, and the Soviet government attached great importance to invention and creation, so it was quickly reported to the higher authorities, and then the task of experimenting with the idea was given to the Kazan Arsenal......