The Bay of Pigs invasion became a significant embarrassment for the US due to its failure, legitimizing Castro's regime and leading to heightened tensions with the Soviet Union.
The Bay of Pigs invasion turned into a huge embarrassment for the United States primarily because the invasion was a failure, with Cuban soldiers and civilians quickly overcoming the exiles involved in the operation at the Bay of Pigs. This event legitimized the Castro regime, worsening the relationship between Cuba and the US while strengthening Cuba's ties with the Soviet Union, setting the stage for the Cuban Missile Crisis.
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