The United States entered World War I in April 1917. Soon the government became concerned that labor strikes might stop the production of military equipment and supplies. In response President Woodrow Wilson created the National War Labor Board. The board recognized the worker's right to organize unions and bargain collectively. Former President Taft and labor attorney Frank Walsh were the co-chairmen. The board had little real power but depended on their ability to negotiate compromises between the two sides. They succeeded in preventing a number of strikes. After Germany was defeated the board was disbanded. In 1919 several strikes broke out in the coal and steel industries. The board supported an eight-hour day for workers and equal pay for equal work regardless of sex.