U.S.S.R.S. Stalin continued to blockade the trade between China and Japan. The flagship held it's position, until it was damaged by Chinese destroyer in February 1942. The damage was severe enough to force the ship to withdraw into the safe port of Vladivostok.
After Soviet Armor Divisions had reached the borders of Beijing, the Chinese cavalry made a desperate attempt to push the Soviet Armor Divisions back north. Soviet tanks crushed the charging cavalry divisions easily and the route to Beijing was clear. The Chinese riflemen divisons and surviving calvalry platoons made their final attempt to stop the Soviet Armor Divisions, but as the 1st, 8th and 23rd Armor Divisions broke through the Chinese defences almost simultaniously, Beijing fell.
After Beijing was captured by the Soviets, Vikings broke free from the Republic of China in March 1943 and signed a separate peace treaty with USSR.
Stalin was willing to stop the hostilities in the Eastern Front in order to give his full attention to France, but China remained stubborn and wasn't willing to capitulate. Therefore Stalin ordered the 15th and 17th Armor Division to conquer a large Chinese city of Hangcheng on the Korean Peninsula and drive the Chinese Korean armies to the sea. The Chinese resistance was feeble and in April 1944 the Soviet tanks occupied Korea.
After losing Korea, Mao Zedong finally realized that the Chinese armies could not resist the power of the Soviet Armor Divisions and on May 1st, 1944, China surrendered without conditions. China was attached to the USSR as a puppet state and renamed Soviet China. After the peace Stalin liberated Korea and Beijing back under Chinese control.
After China had surrendered, Japan now stood alone against the mighty USSR. The situation was unbearable for the hammered Japanese army and just couple weeks after China had succumbed, Japan also surrendered without conditions. Japan was also made a Soviet puppet state and named Soviet Japan. Japan also ceded her North American lands over to the USSR. The fighting on the Eastern Front had ceased.