and was released on December 25, 1921, by President Warren G. Harding. Also notably, the Industrial Workers of the World attempted to obstruct the war effort through strikes in war-related industries and not registering, but it did not meet with large success. Although draft riots were not widespread, an estimated 171,000 people never registered for the draft while another 360,000 people never responded to induction orders. Conscientious objectors Conscientious objector (CO) exemptions were allowed for the Amish, Mennonites, Quakers, and Church of the Brethren only. All other religious and political objectors were forced to participate. Some 64,700 men claimed conscientious objector status; local draft boards certified 57,000, of whom 30,000 passed the physical and 21,000 were inducted into the U.S. Army. About 80% of the 21,000 decided to abandon their objection and take up arms, but 3,989 drafted objectors refused to serve. Most belonged to historically pacifist denominations, especially Quakers, Mennonites, and Moravian Brethren, as well as a few Seventh-day Adventists and Jehovah's Witnesses. About 15% were religious objectors from non-pacifist churches. Ben Salmon was a nationally known political activist who encouraged men not to register and personally refused to comply with the draft procedures. He rejected the Army Review Board proposal that he do noncombatant farm work. Sentenced to 25 years in prison, he again refused a proposed desk job. He was pardoned and released in November 1920 with a "dishonorable discharge". Interwar The draft ended in 1918 but the Army designed the modern draft mechanism in 1926 and built it based on military needs despite an era of pacifism. Working where Congress would not, it gathered a cadre of officers for its nascent Joint Army-Navy Selective Service Committee, most of whom were commissioned based on social standing rather than military experience. This effort did not receive congressionally approved funding until 1934 when Major General Lewis B. Hershey was assigned to the organization. The passage of a conscription act was opposed by some, including Dorothy Day and George Barry O'Toole, who were concerned that such conscription would not provide adequate protection for the rights of conscientious objectors. However, much of Hershey's work was codified into law with the Selective Training and Service Act of 1940 (STSA). World War II By the summer of 1940, as Germany conquered France, Americans supported the return of conscription. One national survey found that 67% of respondents believed that a German-Italian victory would endanger