What was the purpose of the committee on public information

To mobilize public opinion in the wake of World War I.

Explanation:

The Committee on Public Information, also known as the CPI or the Creel Committee, was an official US government agency established to manipulate public opinion in favor of US participation in World War I.

The aim of the Public Information Committee was to provide information to the public about the war effort and the control of anti-war content.

Upon the entry of the United States into World War I, Woodrow Wilson set up the Public Information Committee to spread propaganda for public support.