Unions saw enormous growth in membership and wages during the war, and strikes were rare. Wilson established the National War Labor Board (NWLB) to mediate wartime labor disputes, but it was slow to organize, and the Labor Department provided mediation services in most disputes.
During World War II, unions saw a surge in membership and wage increases, with strikes being infrequent. President Wilson created the National War Labor Board (NWLB) to handle wartime labor disputes, but it took time to get up and running, and the Department of Labor provided mediation services for most conflicts.