100806-N-6306H-003 SAN DIEGO (Aug. 6, 2010) Rear Adm. Joseph Rixey presents the American flag to Rear Adm. Michael Bachmann during the Space and Naval Warfare Systems Command (SPAWAR) change of command ceremony. Bachmann, who served as SPAWAR commander since February 2006, is retiring after 36 years of Service. Rear Adm. Patrick H. Brady relieved Bachmann as commander of SPAWAR. (U.S. Navy photo by Andrea Houck/Released)