Russia's surrender and the signing of the Moscow Peace Treaty marked Germany's final victory on the Russian front. Although the German military had suffered considerable losses on the battlefield, those losses were nothing compared to the victory Germany had gained.
Moreover, through this war, Germany had not only eliminated Russia's threat to the German homeland, but had also reaped substantial benefits. The vast fertile lands south of the Don River and the Volga River alone were enough to leave Germany's coffers brimming over. Not to mention the fifty billion Marks in war reparations Germany had received.
In addition, Germany's many vassal states and Protectorates divided the remaining fifty billion Marks in reparations according to the extent of their contributions during the war. This brought Germany's vassal states and Protectorates considerable benefits, making them all the more willing to support Germany wholeheartedly in carrying this war through to the end. In particular, those vassal states and Protectorates that had not taken part in the war against Russia strongly demanded to be sent into battle when the war against the United States began. That way, they could not only demonstrate their loyalty to Germany, but also gain benefits after defeating the United States.
It could be said that Germany's repeated victories on the battlefield had strengthened the confidence of its many vassal states and Protectorates, allowing Germany to unite the strength of all Europe and fight for Germany's victory.
Europe was still the center of the world. Germany, which controlled all of Europe, was undoubtedly invincible in the world. It was simply impossible for other countries to challenge Germany and contend with it for the position of world hegemon. Even if they joined forces, they could forget about winning.
After Russia was brought down, Germany's strategic focus also had to shift accordingly.