Fifteen countries agree to a form a regional economic integration, which involves complete political and economic integration. This form of regional cooperation would most accurately be described as a:

political union

Explanation: Coming together of countries in agreement to form a regional economic integration, which involves complete political and economic integration. This form of regional cooperation would most accurately be described as a political union.

Example of a political union is the European Union, it was formed between 27 EU countries that together cover much of the continent.

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answerthe same historical circumstances;