[PAR] [TLE] Manchukuo [SEP] Manchukuo (: "Mǎnzhōuguó"literally: " State of Manchuria" ) was a puppet state in Northeast China and Inner Mongolia, which was governed under a form of constitutional monarchy.  The area, collectively known as Manchuria by westerners and Japanese, was designated by China's erstwhile Qing Dynasty as the "homeland" of the ruling family's ethnic group, the Manchus.  In 1931, the region was seized by Japan following the Mukden Incident and a pro-Japanese government was installed one year later with Puyi, the last Qing emperor, as the nominal regent and emperor.  Manchukuo's government was abolished in 1945 after the defeat of Imperial Japan at the end of World War II.  The territories formally claimed by the puppet state were first seized in the Soviet invasion of Manchuria in August 1945, and then formally transferred to Chinese administration in the following year. [PAR] [TLE] Soviet invasion of Manchuria [SEP] The Soviet invasion of Manchuria, also known as the Manchurian Strategic Offensive Operation ("Манчжурская стратегическая наступательная операция" , lit.  "Manchzhurskaya Strategicheskaya Nastupatelnaya Operaciya") or simply the Manchurian Operation ("Маньчжурская операция"), began on 9 August 1945 with the Soviet invasion of the Japanese puppet state of Manchukuo.  It was the last campaign of the Second World War, and the largest of the 1945 Soviet–Japanese War which resumed hostilities between the Union of Soviet Socialist Republics and the Empire of Japan after almost six years of peace.  Soviet gains on the continent were Manchukuo, Mengjiang (Inner Mongolia) and northern Korea.  The Soviet entry into the war and the defeat of the Kwantung Army was a significant factor in the Japanese government's decision to surrender unconditionally, as it made apparent the Soviet Union would no longer be willing to act as a third party in negotiating an end to hostilities on conditional terms.
[PAR] [TLE] Manchukuo [ SEP ] Manchukuo (: " Mǎnzhōuguó"literally : " State of Manchuria " ) was a puppet state in Northeast China and Inner Mongolia , which was governed under a form of constitutional monarchy . The area , collectively known as Manchuria by westerners and Japanese , was designated by China 's erstwhile Qing Dynasty as the " homeland " of the ruling family 's ethnic group , the Manchus . In 1931 , the region was seized by Japan following the Mukden Incident and a pro - Japanese government was installed one year later with Puyi , the last Qing emperor , as the nominal regent and emperor . Manchukuo 's government was abolished in 1945 after the defeat of Imperial Japan at the end of World War II . The territories formally claimed by the puppet state were first seized in the Soviet invasion of Manchuria in August 1945 , and then formally transferred to Chinese administration in the following year . [PAR] [TLE] Soviet invasion of Manchuria [ SEP ] The Soviet invasion of Manchuria , also known as the Manchurian Strategic Offensive Operation ( " Манчжурская стратегическая наступательная операция " , lit . " Manchzhurskaya Strategicheskaya Nastupatelnaya Operaciya " ) or simply the Manchurian Operation ( " Маньчжурская операция " ) , began on 9 August 1945 with the Soviet invasion of the Japanese puppet state of Manchukuo . It was the last campaign of the Second World War , and the largest of the 1945 Soviet – Japanese War which resumed hostilities between the Union of Soviet Socialist Republics and the Empire of Japan after almost six years of peace . Soviet gains on the continent were Manchukuo , Mengjiang ( Inner Mongolia ) and northern Korea . The Soviet entry into the war and the defeat of the Kwantung Army was a significant factor in the Japanese government 's decision to surrender unconditionally , as it made apparent the Soviet Union would no longer be willing to act as a third party in negotiating an end to hostilities on conditional terms .
When did the Operation that seized the territories formally claimed by  Manchukuo began
When did the Operation that seized the territories formally claimed by Manchukuo began
9 August 1945
9 August 1945