In June 1941, Nazi Germany declared a war against the Soviet Union. In this way, the Soviet Union was involved in the vortex of World War II. But from a historical perspective, the Soviet Union could not avoid World War II anyway.

Soviet Russia was established in a life-and-death battle with the great powers. Therefore, with this, the Soviet Union will not be truly friendly to the European powers and Japan. Although Britain and France and other great powers were unable to interfere with the Soviet Union's expansion, it was a matter of Britain and France's concern for finding opportunities to suppress the Soviet Union. Especially the attitude of the UK is very important. After all, the British Empire had not yet disintegrated at that time, and its strength should not be underestimated.

2, World War II clouds

1929, the world of capitalism encountered economic crisis . Even this economic crisis caused turmoil to the great powers such as , Britain, France, and . On the contrary, during this period, the Soviet Union's economy was not affected. For this reason, the European people were quite eager for the Soviet Union. Many people even regard the Soviet Union as the most ideal society in human history. This made Britain and France feel crisis, fear, and hatred.

Under such an atmosphere, the Soviet Union also actively developed its military. The Soviet Union was very clear: in such an atmosphere, it was a matter of time before the Soviet Union and the great powers met.

However, the shadow of in the battle with enveloped the psychology of British and French speakers: because of the stimulation of the 1929 economic crisis, the Nazis mastered Germany and continued to expand in continental Europe. The British and French officials adopted a tolerant attitude towards the expansion of Nazi Germany. Even the British and French people came up with a trick: that is, to lead the disaster to the east, deceive Nazi Germany into expanding eastward, and then merge with the Soviet Union. According to the later summary of Churchill : Britain hoped that Nazi Germany and the Soviet Union would die and be disabled.

However, the British and French powers eventually failed: France was once occupied by Nazi Germany, and if it weren't for the English Channel , Nazi Germany's tank would have likely invaded London.

For the Soviet Union, how could the Soviet Union not know about Britain and France’s wrong thoughts? However, for the Soviet Union, what needs to be guarded against was not only Nazi Germany in the west, but also in the Far East and in Japan. Stimulated by the economic crisis in 1929, Japan was also in a state of rising militarism. Moreover, the Soviet Union did not dare to make a conclusion on what the Japanese who were keen on gambling on the country's destiny could do.

In this way, before the rise of Nazi Germany, the Soviet Union faced a conflict with Britain and France. After the rise of Nazi Germany, it faced a war with Japan and Nazi Germany.

3. It is impossible to avoid

The Nazi Germany's attack on Britain and France once made the Soviets relax their vigilance. In addition, the Soviet Union also made a lot of efforts to avoid the war affecting the Soviet Union: including capturing East Poland and finding a buffer against Nazi Germany. In addition, it was to sign an agreement with Nazi Germany and promise not to fight each other.

However, the attributes of Nazi Germany were destined to continue to expand. After Nazi Germany swept across the continent, the only target that could continue to expand was the Soviet Union. Therefore, this is a war that the Soviet Union could not escape.

In fact, Nazi Germany was also worried about the Soviet Union itself. Therefore, with the mentality of starting to take the lead, Nazi Germany began to raid the Soviet Union in 1941. Large tracts of land in the Soviet Union were lost. Even German troops appeared near Moscow.

Before the outbreak of Soviet-German War , Japan in the Far East also provoked the Normenkan Battle to test the attitude and strength of the Soviet Union. In the end, in the face of the Soviet Union's strength, Japan did not dare to expand the scale of the conflict with the Soviet Union. However, even so, in the early stages of the outbreak of the Soviet-German War, the Soviet Union had to worry about this situation: that is, Japan would attack the Soviet Union with Nazi Germany. Therefore, on the one hand, the Soviet Union had to face pressure from Nazi Germany, and on the other hand, it did not dare to mobilize the Soviet army in the Far East to participate in the Soviet-German War.

1945, World War II ended. Although the Soviet Union was one of the victorious countries, the Soviet Union was one of the countries with the largest losses in the Western battlefield, and even had a population gap at one time.

And for the Soviet Union, this war was inevitable: after all, in the atmosphere at that time, it was unrealistic to be safe in the Soviet Union.