What was the most important diplomatic effect of the declaration of independence united states

It was the recognition of the United States.

Explanation:  The Declaration of Independence is the founding document of the United States of America (USA).

The statement was first published in newspapers and read aloud to crowds gathered in cities across the colonies. Members of Congress signed the official parchment paper on August 2. The document first presents a list of complaints made against the English king and then brings the declaration of independence itself.

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answer; albert bandura;