I think it is the third one hope that helps
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The political support extended by US in supporting Chile and Angola were significant.
Explanation:
It was during the Chilean civil war, US backed Chile' president but the British were supporting the congressional forces in Chile. It was after the American independence, that America began to exert great influence on the domestic affairs of Chile and even in the military efforts of the war and thus causing pressure to the British forces to leave Chile. The influence of the United States of America in both the economic and the political arenas of Chile has gradually increased over two centuries and continues to be significant.
U.S. assistance through the International Military Education and Training program finances professional military education opportunities at United States military education institutions. US is justified in supporting Chile and Angola, as they are the small nations which claimed independence and America is said to issue seventy three percent of Military support to the world nations.
Answer:
The failure of the United States to enter a "Golden Age" after Johnson's 1964 victory and the passage of the Civil Rights Act was the Vietnam War.
Explanation:
The war in Vietnam was the longest in American history. It was an experience of failure and frustration for the country, constituting, without a doubt, the most serious failure of the United States in the Cold War.
There was a curious discrepancy in the external environment, where this war was a huge defeat for the country, and the internal environment, where the passage of the Civil Rights Act implied a social progress never seen before in the history of the United States.