There were many industries striking in 1946 due to decreased production following World War II.
The electric, steel, miners, and railroads worker all went on strike in addition to the meatpacking industry.
Wages had been frozen during the war but the war ending triggered strikes with people demanding higher wages. As price freezes were released workers saw an opportunity to also demand increased wages.
The correct answer to the question above is that the United States appointed new leaders. When the United States allowed the new leaders, it allowed the new system of government in Japan which lead them following the World War II.
The death of archduke Francis Ferdinand of Hungary was the initial cause of ww1. However there was a build up to ww1. Countries had new powerful weapons and wanted to capitalise on this. The navy’s of many countries were being expanded. Political disagreements between countries led to increased tensions.
Because the Japanese attacked Pearl Harbor so the Japanese wasn't trusted. Hope this helps :)