What is the primary purpose of states having police power?

Under the new imperialism europe did not need large numbers of people to control territories because of

Why caused john quincy adams to write the monroe doctrine?

Why might the spanish government have approved of the encomienda system? a the system allowed for fair treatment of all under it, leading to a happy and prosperous colony. b the system used natives as slaves which meant the government was able to maximize their profit of exported goods. c the system allowed for mostly profitable trade within the different colonies. d the system was a great example of how to successfully run a colony, making spain a world power.