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The Suez Crisis very publicly exposed Britain 's limitations to the world and confirmed Britain 's decline on the world stage and its end as a first-rate power , demonstrating that henceforth it could no longer act without at least the acquiescence , if not the full support , of the United States .
 Britain, Britain, United States
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Britain, Britain, United States