During world war i, the main goal of the us government agency that created war posters was
to increase public support for the war.
to convince the soldiers in europe to fight.
to get president wilson reelected.
to take people’s minds off the war.
the correct answer you are looking for is "to increase public support for the war"
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Answer;

to increase public support for the war

During World War I, the main goal of the US government agency that created war posters was to increase public support for the war.

Explanation;

During World War I, the impact of the poster as a means of communication was greater than at any other time during history.

The ability of posters to inspire, inform, and persuade combined with vibrant design trends in many of the participating countries to produce thousands of interesting visual works. As a valuable historical research resource, the posters provide multiple points of view for understanding this global conflict.

they sometimes resort to unethical tactics.

the revolution instituted a short-lived roman republic.