<P> A Soviet - US Joint Commission met in 1946 and 1947 to work towards a unified administration , but failed to make progress due to increasing Cold War antagonism and to Korean opposition to the trusteeship . Meanwhile , the division between the two zones deepened . The difference in policy between the occupying powers led to a polarization of politics , and a transfer of population between North and South . In May 1946 it was made illegal to cross the 38th parallel without a permit . </P>
<P> A Soviet - US Joint Commission met in 1946 and 1947 to work towards a unified administration , but failed to make progress due to increasing Cold War antagonism and to Korean opposition to the trusteeship . Meanwhile , the division between the two zones deepened . The difference in policy between the occupying powers led to a polarization of politics , and a transfer of population between North and South . In May 1946 it was made illegal to cross the 38th parallel without a permit . </P>
when did south korea and north korea split
when did south korea and north korea split
May 1946
May 1946