How many people are there in the Japan Development Group?

1936 in may, the Japanese kwantung army formulated the so-called "relocation plan of one million Manchu agricultural immigrants". A large number of Japanese agricultural poor poured into the northeast of China, becoming a "Japanese pioneering group". By 1945, the Japanese army organized 14 batches, with a total of 70,000 households and 200,000 people, to invade northeast China.