Answer:
Immigrants were not willing or able to work in factory environments
I'm gonna guess you said manchuria, or China, or Russia.
In which case, Japan invades China in 1937. Starting the Second Sino-Japanese War.
Explanation:
The labor market changed radically. Peacetime conflicts concerning race and labor took on a special dimension because of the pressure for national unity. The Hollywood film industry was important for propaganda. Every aspect of life from politics to personal savings changed when put on a wartime footing. This was achieved by tens of millions of workers moving from low to high productivity jobs in industrial centers. Millions of students, retirees, housewives, and unemployed moved into the active labor force. The hours they had to work increased dramatically as the time for leisure activities declined sharply.
The answer to this question is A he was looking for a route to the east
