“We believe in real defense against real dangers, but not in a preposterous ‘preparedness’ against hypothetical dangers,” wrote Addams and other anti-war activists in a 1915 letter to Wilson. A military buildup, they wrote, would foment suspicion and make it harder to broker international peace. Conscientious objectors and peace advocates argued that by pursuing military preparedness, the United States was simply emulating Germany, which had compulsory military service.
But supporters of preparedness had little patience for pacifism. Instead, they urged Wilson to adopt universal military training, or UMT. Clark and others appealed to Congress, but Wilson resisted. However, he did increase the size of the military.
Ironically, the preparedness movement did little to ready the United States for war. After Wilson reluctantly declared war on Germany on April 2, 1917, the number of volunteers wasn’t enough to satisfy the gigantic number of troops called for by General John J. Pershing. Six weeks after declaring war, Wilson’s Congress passed the Selective Service Act, and 2.8 million men were eventually drafted into World War I. Meanwhile, Wilson turned down Roosevelt’s bid to join the war with a volunteer corps of his own.
Preparedness may not have exactly worked, but the camps that supplied so many of the war’s troops—90,000 Reserve officers in all—survived. The Plattsburg Camps evolved into the Citizens’ Military Training Camps, which took place every summer from 1921 through 1940. Four hundred thousand men, including future president Ronald Reagan, attended the camps. But the Selective Service, which has registered 89 percent of all American men between the ages of 18 and 25, remains World War I’s most potent modern military legacy.