Nicaragua
contra was a label given to the various rebel groups, active from 1979 through to
the early 1990s, that opposed the Sandinista Junta of National
Reconstruction government in Nicaragua. the democratic elected regime in Nicaragua threatened USA private land owners in the country.
The Fourteen Points was a statement of principles for peace that was to be used for peace negotiations in order to end World War I. The principles were outlined in a January 8, 1918 speech on war aims and peace terms to the United States Congress by President Woodrow Wilson. Europeans generally welcomed Wilson's points but his main Allied colleagues (Georges Clemenceau of France, David Lloyd George of the United Kingdom, and Vittorio Orlando of Italy) were skeptical of the applicability of Wilsonian idealism.
The United States had joined the Allied Powers in fighting the Central Powers on April 6, 1917. Its entry into the war had in part been due to Germany's resumption of submarine warfare against merchant ships trading with France and Britain. However, Wilson wanted to avoid the United States' involvement in the long-standing European tensions between the great powers; if America was going to fight, he wanted to try to unlink the war from nationalistic disputes or ambitions. The need for moral aims was made more important, when after the fall of the Russian government, the Bolsheviks disclosed secret treaties made between the Allies. Wilson's speech also responded to Vladimir Lenin's Decree on Peace of November 1917, immediately after the October Revolution, which proposed an immediate withdrawal of Russia from the war, called for a just and democratic peace that was not compromised by territorial annexations, and led to the Treaty of Brest-Litovsk on March 3, 1918.
The speech made by Wilson took many domestic progressive ideas and translated them into foreign policy (free trade, open agreements, democracy and self-determination). The Fourteen Points speech was the only explicit statement of war aims by any of the nations fighting in World War I. Some belligerents gave general indications of their aims, but most kept their post-war goals private. The Fourteen Points in the speech were based on the research of the Inquiry, a team of about 150 advisers led by foreign-policy adviser Edward M. House, into the topics likely to arise in the anticipated peace conference.
The answer is President Woodrow Wilson.
The correct answer to this open question is the following.
I think the U.S. backed down on its enforcement of the Treaty once gold was discovered in the Black Hills because the United States federal government had already signed and formalized the Treaty of Laramie in 1868, in which the government recognized that region of Black Hills as a territory of the Sioux Native American Indian tribe.
Let's have in mind that although large gold deposits were found in 1875 in Deadwood Gulch, Black Hills territory and thousands of people went there to find fortune, the territory already belonged to the Lakotas and the Sioux.