<span>Selling military supplies </span>
Answer:
Most people associate slavery with the American South. However, slaves were utilized in the Caribbean, as well as in all parts of the original colonies and territories that later became the United States. From the time Christopher Columbus (1451–1506) arrived in the Caribbean in 1492, Caribbean Indians were enslaved to work in mines and on plantations. Later, the Spanish began importing African slaves to work the sugar plantations. Because sugar crops required quick processing to avoid spoilage, Caribbean slave life was much harsher than that of slaves in North America. Nineteen-hour days and harsh working conditions led to disease and high death rates. Rather than improve conditions, plantation owners simply increased the number of slaves they imported.
Answer: Oil.
Japan wanted southern Indochina's supply of oil as they were starved for it and unable to maintain their military. On the same day they attacked Pearl Harbour they also attacked the Philippines to gain access to this oil. The attack on Pearl Harbour was to prevent any armada of US ships from retaking the Philippines, which they succeeded at doing.
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In the period 1865 to 1910, the immigrants faced many challenges and also embarked in the opportunities available to them in the North and the West. The main challenge was related to job hunting. I hope my answer has come to your help. God bless and have a nice day ahead!