• for much of its history Korean Peninsula controlled by neighbouring countries like China and Japan partly because of its strategic position in East Asia

Japan was rising power in Asia in late 19th and early 20th centuries aggressively extending its control over the region.

  • 1905 Korea became a protectorate of Japan
  • 1910 Japan annexed Korea

Japanese ruled Korea with iron fist.

  • Police + military had total power Koreans had very few rights.

there was great deal of resentment towards Japanese.

  • though it was difficult + dangerous to oppose Japanese rule some Koreans resisted

Despite crushing resistance movements brutally Japanese continued to fight against them through 1920s and 1930s.

  • still it proved impossible to undermine Japanese control of Korea

Resistance to Japanese rule intensified with outbreak of WWII.

  • some resistance movements had support of communists in China and USSR.
  • resistance groups were courageous + committed but still failed to make much of an impact on Japanese rule.

With differing aims and ambitions for an independent Korea different groups were deeply divided.


One resistance group led by Kim II Sung particularly important.

  • Kim was deeply committed communist who had been trained in political and military thinking in the USSR.
  • His forces fought tenacious guerrilla war against the Japanese until they were forced to flee to communist controlled areas in China 1939
  • this struggle proved to be important later helped Kim gain support of North Koreans after war

As WWII neared end in 1945 Japanese were facing defeat by allies. leaders of allies met at Potsdam Conference, July-Aug 1945

  • agreed that Korea should eventually be given full independance.
  • did not specify what form this independance would take

Allies agreed that once Japanese defeated Korea would be temporarily occupied until arrangements for new govt could be put in place . US forces would govern southern part of Korea Soviet troops govern northern part of Korea. dividing line would be the 38th parallel