During the beginning of World War II, President Franklin D. Roosevelt had re-introduced the draft (conscription) in September 1940, and Koval registered for it on January 2, 1941. Raven Electric Company secured him a year's deferment from Service until February 1942. According to Historian Vladimir Lota, Koval's handlers wanted him to steal information about chemical weapons, and felt that he would not be able to do so while drafted. When the deferment expired, Koval was inducted into the United States Army. He received basic training at Fort Dix in New Jersey before being sent to the Citadel in Charleston, South Carolina. There, Koval served as a private in the 3410th Specialized Training and Reassignment Unit. On August 11, 1943, he was transferred to the Army Specialized Training Program, a unit established in December 1942 to provide talented enlistees with an education and technical training. Koval attended the City College of New York (CCNY) and studied electrical engineering. His CCNY classmates looked up to the older Koval as a role model and father figure who never did homework and was a noted ladies' man, never knowing about his Soviet education and wife. Colleagues recalled that he never discussed politics or the Soviet Union.