452 MSG Change of Command, Retirement ceremonies Published June 18, 2012 By 452 AMW 452 AMW MARCH AIR RESERVE BASE, CALIF. -- Col. Pamela LeBlanc, retired during a June 10 ceremony at March Air Reserve Base, Calif., after honorably serving nearly 33 years in the U.S. Air Force Reserve. LeBlanc relinquished command of the 452d Mission Support Group just prior to her retirement.