They used triangular sails that allowed these ships to travel better.
Hope this helps!
(if you could rate/thank me that would be awesome)
Answer:
terrorism
Explanation:
ethnic conflict is a conflict between two or more ethnic groups.The source of the conflict could be political, social, economic or religious. Individuals involved fight for their ethnic group's position within society.
power struggle : "a situation in which two or more people or groups compete for control in a particular sphere."
genocide : "the deliberate killing of a large number of people from a particular nation or ethnic group with the aim of destroying that nation or group"
terrorism : "the unlawful use of violence and intimidation, especially against civilians, in the pursuit of political aims."
I think its the availability of good jobs in the North and West.
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