An independent executive agency.
Answer:
The desegregation of the US Military.
Explanation:
The term "white mans burden" refers to imperialism, Eurocentric racism and Western aspirations to dominate the developing world. However, this phrase did not start as a broad term but was a poem by Rudyard Kipling about the colonization of the Philippines by the United States after taking it from Spain during the Spanish-American War.
English sea captains who refused to let spain control the seas were called Sea Dogs .
Answer: Sea Dogs
There were lots of foreign changes that presented challenges for the US. I'll give you a few examples from different time periods. First would be when England wanted to tax the Americans in the Revolutionary period. They did this to try and restrict America's freedom. Another example would be that Russia had spies during the cold war period. This was to gain intelligence of the US war plans. Also when Germany sent the Zimmerman Telegram to Mexico during the WWII period. This was to get Mexico to launch a surprise attack on the US.