The use of spetsnaz (special forces) in the Manchurian offensive of 1945 illustrates what was supposed to happen to Germany if she had not attacked the USSR:
Japan had a peace treaty with the Soviet Union. But Japan had gone to war with other states and had exhausted her military, economic and other resources. Japan had seized vast territories inhabited by hundreds of millions of people who wanted to be liberated and were ready to welcome and support any liberator who came along. Japan was in exactly the situation in which Stalin had wanted to see Germany: exhausted by war with other countries, and with troops scattered over expansive territories the populations of which hated the sight of them.
Thus, in the interests naturally of peace and humanity Stalin struck a sudden crushing blow at the armed forces of Japan in Manchuria and China, violating the treaty signed four years earlier. The operation took place over vast areas. In terms of the distances covered and the speed at which it moved, this operation has no equal in world history. Soviet troops operated over territories 5000 kilometres in width and 600-800 kilometres in depth. More than a million and a half soldiers took part in the operation, with over 5000 tanks and nearly 4000 aircraft. It really was a lightning operation, in the course of which 84,000 Japanese officers and men were killed and 593,000 taken prisoner. A tremendous quantity of arms, ammunition and other equipment was seized.
It may be objected that Japan was already on the brink of catastrophe. That is true. But therein lies Soviet strategy: to remain neutral until such time as the enemy exhausts himself in battle against someone else, and then to strike a sudden blow. That is precisely how the war against Germany was planned and that was why the partisan units, the barriers and defensive installations were all dispensed with, and why the ten airborne corps were created in 1941.
In the Manchurian offensive the spetsnaz detachments put up their best performance. Twenty airborne landings were made not by airborne troops, but by special reconnaissance troops. Spetsnaz units of the Pacific Fleet were landed from submarines and surface boats. Some spetsnaz units crossed the frontier by foot, captured Japanese cars and used them for their operations. Worried about the railway tunnels on a strip of the 1st Far Eastern front, the Soviet high command created special units for capturing the tunnels. The groups crossed the frontier secretly, cut the throats of the guards, severed the wires connected to the explosive charges, and put the detonators out of action. They then held the tunnels until their own forces arrived.
In the course of the offensive a new and very risky type of operation was employed by spetsnaz. Senior GRU officers, with the rank of colonel or even major-general, were put in charge of small groups. Such a group would suddenly land on an airfield close to an important Japanese headquarters. The appearance of a Soviet colonel or general deep in the Japanese rear never failed to provoke astonished reactions from both the Japanese high command and the Japanese troops, as well as from the local population. The transport planes carrying these were escorted by Soviet fighter aircraft, but the fighters were soon obliged to return to their bases, leaving the Soviet transport undefended until it landed. Even after it landed it had at best only one high-ranking officer, the crew and no more than a platoon of soldiers to guard over the plane. The Soviet officer would demand and usually obtain a meeting with a Japanese general, at which he would demand the surrender of the Japanese garrison. He and his group really had nothing to back them up: Soviet troops were still hundreds of kilometres away and it was still weeks to the end of the war. But the local Japanese military leaders (and the Soviet officers too, for that matter) naturally did not realise this. Perhaps the Emperor had decided to fight on to the last man…
In several recorded instances, senior Japanese military leaders decided independently to surrender without having permission to do so from their superiors. The improvement in the morale and position of the Soviet troops can be imagined.