30th Operations Group changes command
VANDENBERG AIR FORCE BASE, Calif. -- Col. Marcelino Del Rosario, incoming 30th Operations Group commander, addresses the guests and 30 OG members after assuming command during a change of command here Tuesday, June 25. Del Rosario previously was the Chief, Assessments and Analyses, Cooperative Threat Reduction Department, Defense Threat Reduction Agency, in Fort Belvoir, Virginia. (U.S. Air Force photo/Michael Peterson)