Retirement ceremony for Lt. Col. Brian Tonnell Published July 8, 2009 VANCE AIR FORCE BASE, Okla. -- Congratulations and good luck Lt. Col. Brian Tonnell. Thank you for your service. Time in service: 22 years Retirement ceremony: At 3 p.m., Friday, July 10, in the Base Auditorium, Bldg. 550. A reception will follow at 5 p.m. at Colonel Tonnell's home, 1115 W. York Ave, Enid, Okla.