<P> The Allied occupation of Japan at the end of World War II was led by General Douglas MacArthur , the Supreme Commander of the Allied Powers , with support from the British Commonwealth . Unlike in the occupation of Germany , the Soviet Union was allowed little to no influence over Japan . This foreign presence marks the only time in Japan 's history that it has been occupied by a foreign power . The country became a parliamentary democracy that recalled `` New Deal '' priorities of the 1930s by Roosevelt . The occupation , codenamed Operation Blacklist , was ended by the San Francisco Peace Treaty , signed on September 8 , 1951 , and effective from April 28 , 1952 , after which Japan 's sovereignty -- with the exception , until 1972 , of the Ryukyu Islands -- was fully restored . </P>
<P> The Allied occupation of Japan at the end of World War II was led by General Douglas MacArthur , the Supreme Commander of the Allied Powers , with support from the British Commonwealth . Unlike in the occupation of Germany , the Soviet Union was allowed little to no influence over Japan . This foreign presence marks the only time in Japan 's history that it has been occupied by a foreign power . The country became a parliamentary democracy that recalled `` New Deal '' priorities of the 1930s by Roosevelt . The occupation , codenamed Operation Blacklist , was ended by the San Francisco Peace Treaty , signed on September 8 , 1951 , and effective from April 28 , 1952 , after which Japan 's sovereignty -- with the exception , until 1972 , of the Ryukyu Islands -- was fully restored . </P>
when did the us leave japan after wwii
when did the us leave japan after wwii
April 28 , 1952
April 28 , 1952