As a Captain he served as Adjutant, Sydney University Regiment; Regimental Adjutant, The Royal Australian Regiment and as the exchange officer with the 1st Battalion Irish Guards (British Army).

Upon his return to Australia Lieutenant General Hurley served with the 5th/7th Battalion, The Royal Australian Regiment. Following Command and Staff College he was posted as the S02 (Non-Corps Postings) in the Office of the Military Secretary (MS). In 1989 he served a posting as the Mechanised Infantry Adviser, Australian Army Project Team Malaysia.

Promoted to Lieutenant Colonel in 1990 he was posted as the Senior Career Adviser (Armour, Artillery, Engineers and Infantry) in MS. A posting as SO1 (Operations) Headquarters 2nd Division followed in 1991. In November 1991 he assumed command of 1 RAR which he led during Operation SOLACE (Somalia) in 1993. He was awarded the Distinguished Service Cross for this service.

Following his command appointment, Lieutenant General Hurley was posted as SO1 (Operations), Headquarters 1st Division in January 1994. In June 1994 he was promoted to Colonel and posted as Chief of Staff, Headquarters 1st Division. In 1996/97 Lieutenant General Hurley attended the United States Army War College, returning to a posting as Military Secretary to the Chief of Army. In December 1997 he was posted to the Australian Defence Headquarters as the Director of Preparedness and Mobilisation.

In January 1999 he was promoted to Brigadier and assumed command of the 1st Brigade in Darwin. During this period he oversaw the Brigade's transition to a higher degree of operational readiness and its support to Australian led operations in East Timor.

In January 2001 he was posted as the Director General Land Development within Capability Systems in the Office of the Vice Chief of the Defence Force. In July 2001 he was promoted to Major General and appointed Head, Capability Systems.

In December 2002 he was appointed to the position of Land Commander, Australia.

In December 2003 he was promoted to Lieutenant General and posted into the position of Chief Defence Capability Development Group responsible and accountable for assessing and defining what capabilities the ADF should have at present and into the future.

His regimental postings since that time include: service with the First Battalion, Pacific Island Regiment (Papua New Guinea) as a rifle platoon commander; the Ninth Battalion, Royal Queensland Regiment, as Adjutant; rifle company second-in-command and rifle company commander in the Third Battalion, the Royal Australian Regiment; Commanding Officer of the Sixth Battalion, the Royal Australian Regiment, as a consequence of which he was appointed a Member of the Order of Australia; Commander of the Army's mechanized First Brigade and later, Commander of the 1st Division and its Deployable Joint Force Headquarters. In addition, Major General Molan has served at the Infantry Centre as Senior Instructor (Tactics), and with 1 Aviation Regiment as a helicopter pilot. Major General Molan was the Commander of the Australian Defence Colleges, including the Australian Defence Force College (a joint undergraduate university), the Australian Command and Staff College (a joint staff college for officers of major equivalent rank) and the Australian Defence and Strategic Studies Centre (a course for civilians and officers of Colonel equivalent rank).

In April 2004, Major General Molan deployed for a year to Iraq as the Deputy Chief of Staff for Operations (Chief of Operations), Headquarters Multinational Force - Iraq during continuous and intense combat operations. This period covered the Iraqi elections in January 2005, and the pre-election shaping battles of Najaf, TalAfar, Samarra, Fallujah, Ramadan 04 and Mosul. For distinguished command and leadership in action in Iraq, Major General Molan was awarded the Distinguished Service Cross by the Australian Government and the Legion of Merit by the United States Government.

Major General Molan has served in staff postings in Army Headquarters and Headquarters Australian Defence Force in the fields of Combat Development and in Industrial Relations, and is a graduate of the Army Command and Staff College, Queenscliffe, the Joint Services Staff College and the Australian College of Defence and Strategic Studies. He also served as the Army Attache in Jakarta as a Colonel between 1992 and 1994 and for this service he was awarded the Indonesian decoration Bintang Dharma Yudha Nararya in 1995. Between 1998 and 1999 Major General Molan was the Defence Attaché in Jakarta as a Brigadier and served in East Timor. On the 25th March 2000 he was promoted to Officer of the Order of Australia for his service in Indonesia and in East Timor. In 2000, as Commander of the Deployable Joint Force Headquarters, Major General Molan was the commander of the Australian evacuation force from the Solomon Islands.

In May 1987 CW2 Grice was assigned to the 160th Special Operations Aviation Group (SOAG) as an MH-47D pilot after successfully completing the 160th's assessment process. After five and a half years as a mission pilot he attended the Chinook Instructor Pilot Course and was assigned the duties of a Test and Evaluation Pilot for the MH-47E being developed for Special Operations Forces (SOF) Mission Support. As a Test and Evaluation Pilot he was tasked to be the Subject Matter Expert (SME) for supporting the MH-47E and MH-60K Digital Map Display unit and the development of an Automated Mission Planning System.

In 1991 Mr. Grice became the Mission Planning Systems Project Officer. He became a major influence in the development of the Portable Flight Planning System (PFPS) now in use throughout the US Department of Defense for Aviation Mission Planning, and for SOF Aviation, Ground and Maritime Mission Planning.

After nine years as the Mission Planning Systems Project Officer, CW4 Grice was reassigned in October 2000 as the Simulation and Mission Rehearsal Systems Project Officer. CW4 Grice initiated and completed numerous improvements to the Simulation and Mission Rehearsal Systems at the 160th SOAR. Mr. Grice focused on the issues and obstacles that were preventing the 160th from meeting long standing requirements to conduct Mission Rehearsals in the virtual and constructive domains. When funding was sought for fielding additional aviation simulators to the 160th CW4 Grice ensured that the plans included the necessary components to develop the simulators to a higher degree of integration and interoperability than had ever been achieved within the United States Special Operations Command (USSOCOM): The MH-47G and MH-60Blk1 Combat Mission Simulators (CMS) are being delivered running a Common DataBase (CDB) that contains all of the data elements required for the virtual and constructive systems and a Common Environment (CE) that will establish baseline common servers for weather modeling, terrain modeling, navigation aids, and other common elements.

In 2004 CW4 Grice was asked to move to USSOCOM located at MacDill AFB, Florida to become the Mission Training and Preparation Systems (MTPS) Branch Chief. As the MTPS Branch Chief Mr. Grice is the functional manager with oversight over MTPS and has developed a Roadmap covering all Training, Planning, Preview, and Rehearsal (Preparation) Systems used by SOF Air, Ground, and Maritime.

CW4 Grice will begin transition leave this April in preparation for retirement from the U.S. Army with 25 years of service on 1 July 2006.

Professor Nahavandi has been an active researcher in the area of Modelling and Intelligent Systems since 1986. He won the title of Young Engineer of the Year for his novel intelligent robotic end effector in 1996. Professor Nahavandi received the Best Paper Award at the World Automation Congress 2000 in the USA for his contributions to control system design. In 2002 Professor Nahavandi became Consultant to Jet Propulsion Lab (NASA). In 2003 Professor Nahavandi was an invited speaker at the 2003 BISC FLINT-CIBI International Joint Workshop on Soft Computing for Internet and Bioinformatics Frontiers - University of California at Berkeley. He was also Invited speaker at Jet Propulsion Laboratory, NASA, Pasadena, USA, July 2002 and Keynote speaker at five international conferences including the IEEE International conference on DSP in Communication, Feb. 1999, Perth. Professor Nahavandi was the General Chair For World Manufacturing Congress 97 (NZ), Co-Chair for International Symposium on Manufacturing with Applications (ISOMA 98, Alaska), Chair for International Symposium on Manufacturing with Applications (ISOMA’2000, Hawaii), Co-Chair - The IEEE International Conference on Industrial Technology (IEEE ICIT 2001), General Chair - International Congress on Autonomous Intelligent Systems (2002, Deakin)

Professor Nahavandi holds the position of IEEE Systems Journal (Member of the Board of Associate Editors), Editor for the International Journal Intelligent Automation and Soft Computing (South Pacific region) and International Journal of Computational Intelligence (Editorial Board member).

Professor Nahavandi has been awarded 8 ARC research grants in the past five years and several industry based research grants for a total of over $7.3 M. Professor Nahavandi received the Research collaboration / initiatives award from Japan (2000) and Prince & Princess of Wales Science Award in 1994. He is currently supervising 8 PhD and 2 Masters of Engineering students and previously supervised 9 PhD and 12 Masters to successful completion.