The Good Neighbor policy enacted by FDR prior to World War II changed the United States' intervention in South and Central America to more of a diplomatic relationship as opposed to policing and enforcing. Prior to the enactment of this policy, the US had military forces stationed throughout Central America and also had something of a bad reputation—being viewed as much more of an enforcer and overlord than a neighboring country and friend.
With the United States' entry into World War II, this benefited the country in two main ways. First, the US had the majority of their military might available for the conflict since they had been pulled out of these neighboring countries. Second, it earned sympathy for the US because they were no longer enforcing policies on Latin American countries. These countries were then willing to reach out and offer aid and support after Pearl Harbor and during the war efforts later on.
The Good Neighbor Policy was adopted by FDR's administration and announced...
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