Answer:
The Monroe Doctrine is the best known U.S. policy toward the Western Hemisphere. Buried in a routine annual message delivered to Congress by President James Monroe in December 1823, the doctrine warns European nations that the United States would not tolerate further colonization or puppet monarchs.
British authorities treated the three southern provinces as a separate region. The colonial administration, as it consolidated its southern position in the 1920s, detached the south from the rest of Sudan for all practical purposes.
Because it was very useful and if they didn't have a lot of money they can just fix and make clothes instead of buying