Conrad volunteered for the infantry at Fort Snelling, MN and received basic training at Camp Wolters in Mineral Wells, TX. He sailed across the Atlantic Ocean to Casablanca. Took a train to Bizetrte, and then in boats across the Mediterranean near Salerno. His company was in the field for 128 days without being out of the line. His Division moved toward Rome. The Division took 1500 Germans prisoner without resistance in the Powe Valley. The Division guarded the prisoners. Following the war, Conrad was discharged from the army at Camp McCoy, Wisconsin. He returned to school on the GI bill. He graduated in electrical engineering and took a job with Northern States Power in Minneapolis in 1949.