<span>Mutually Assured Destruction, which was associated with the cold war.
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... because they opposed the United States becoming a member of the League of Nations.
The League of Nations was the signature idea of President Woodrow Wilson, point #14 of his 14 Points, an international peacekeeping association which he recommended for post-war settlements. The Treaty of Versailles adopted that idea, but back home in the United States, there was not support for involving America in any association that could diminish US sovereignty over its own affairs or involve the US again in wars beyond those pertinent to the United States' own national security.
Declare war is a power of the legislative branch
Answer:
Spanish minister Do Luis de Onis and U.S. Secretary of State John Quincy Adams sign the Florida Purchase Treaty, in which Spain agrees to cede the remainder of its old province of Florida to the United States.
