Jimmie was inducted into the Air Force November 26, 1965. He served as an Aircraft Armament Systems Technician (462X0) and a Technical Instructor for B-52 Weapons Systems. Jimmie was stationed at these bases: Lackland, Texas; Lowry, Colorado; Eglin, Florida; Ubon, Thailand; McConnell, Kansas; Kadena, Okinawa; Korat, Thailand; Kunsan, Korea; George, California; Osan, Korea; Seymour Johnson, North Carolina; Lahr, Germany; McDill, Florida; Ellsworth, South Dakota; Barksdale, Louisiana; Osan, Korea; Soesterberg (Camp New Amsterdam) Holland; Bitburg, Germany; Decimaomannu, Sardina; and Dyess, Texas.
He received the following honors: Air Force Commendation Medal one Oak Leaf Cluster; Air Force Outstanding Unit Award three Oak Leaf Clusters; Air Force Good Conduct Medal five Oak Leaf Clusters; National Defense Service Medal; Armed Forces Expeditionary Medal; Vietnam Service Medal one Bronze Service Star; Air Force Longevity Service Award Ribbon four Oak Leaf Clusters; Non-commissioned Officers Professional Military Education Graduate Ribbon one Oak Leaf Cluster; Small Arms Expert Marksmanship Ribbon; Korean Presidential Unit Citation; Republic of Vietnam Gallantry Cross Palm and Republic of Vietnam Campaign Medal. Technical Sergeant Steinke was discharged June 30, 1986.