From 2002 to 2004, Stavridis commanded Enterprise Carrier Strike Group, conducting combat operations in the Persian Gulf in support of both Operation Iraqi Freedom and Operation Enduring Freedom. Afterwards, as a vice admiral, Stavridis served as senior military assistant to the United States Secretary of Defense. On October 19, 2006, he became the first Navy officer to command the United States Southern Command in Miami, Florida. In July 2009, he became Supreme Allied Commander Europe (SACEUR). He retired as SACEUR in 2013.