[6] Secretary of War Newton Baker authorized Major General Franklin Bell to organize the 152d Depot Brigade, an element of the 77th Division.

[8][9][10] The depot brigade filled two purposes: one was to act as a receiving unit for men sent to camps by local draft boards;[11][12] the other was to train replacements for the American Expeditionary Forces.

[13] The role of depot brigades was to receive and organize recruits, provide them with uniforms, equipment and initial military training, and then send them to France to fight on the front lines.

The depot brigades also received soldiers returning home at the end of the war and completed their out processing and discharges.

Depot brigades were often organized, reorganized, and inactivated as requirements to receive and train troops rose and fell, and later ebbed and flowed during post-war demobilization.