Rather than attacking Japan's Imperial Navy in force, the goal was to capture and control strategic islands along a path toward the Japanese home islands, bringing U.S. bombers within range and preparing for a possible invasion.
Because the factory owners were rich and looked down upon the poor immigrants that came to this country. So you pretty much had the rich people on one side of the city, and then the poor regular workers and the immigrant workers. All about social structure
They used quinine which helps treat malaria