Terrence J. O'Shaughnessy of the Air Force, the Pentagon, Washington, D.C. 10. June 2000 - April 2001, operations officer, 555th Fighter Squadron, Aviano AB, Italy 11. April 2001 - July 2002, Commander, 510th Fighter Squadron, Aviano AB, Italy 12. August 2002 - June 2003, student, Industrial College of the Armed Forces, National Defense University, Fort Lesley J. McNair, Washington, D.C. 13. June 2003 - August 2004, Chief, Joint Plans and Operations, Supreme Headquarters Allied Powers Europe, Mons, Belgium 14. August 2004 - July 2005, senior special assistant to the Supreme Allied Commander Europe and Commander, U.S. European Command, Supreme Headquarters Allied Powers Europe,
Supreme Headquarters Allied Expeditionary Force to this day. Southwick House was used as an alternative headquarters near Portsmouth. Its staff took the outline plan for Operation Overlord created by Lieutenant General Sir Frederick E. Morgan, Chief of Staff to the Supreme Allied Commander (Designate) (COSSAC), and Major General Ray Barker. Morgan, who had been appointed chief of staff to the Supreme Allied Commander (designate) in mid-March 1943 began planning for the invasion of Europe before Eisenhower's appointment. and moulded the plan into the final version, which was executed on 6 June 1944. That process was shaped by Eisenhower and the land forces commander for the