Clue: Alliance for Progress gp.

Answer: OAS

Length: 3

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Similar Clues:

• Alliance formed in 1860-61: Abbr. (CSA with 3 letters)
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• Post-WWII alliance formed in Bogotá (OAS with 3 letters)
• Intl. alliance formed in 1948 (OAS with 3 letters)
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• Alliance formed 4/30/48 (abbr.) (OAS with 3 letters)