Lieutenant Colonel Ross Chapman entered the Australian Defence Force Academy after graduating from Camberwell Grammar School in 1997. After completing an Arts Degree, he entered the Royal Military College – Duntroon and graduated as a Lieutenant in the Australian Army in 2001.
Over the next three years, Lieutenant Colonel Chapman served as a Platoon Commander within an Infantry Battalion and completed a nine-month tour in East Timor. Following successful selection for the Special Air Service Regiment (SAS) in 2006, Lieutenant Colonel Chapman completed a number of different roles within the unit over the following eight years. This included numerous operational deployments to Iraq and Afghanistan and a separate rotation to Afghanistan with a United States Special Operations Command unit.
In 2010, Lieutenant Colonel Chapman was awarded the Distinguished Service Medal for leadership in combat while performing duties as an SAS Troop Commander in Afghanistan. On another rotation in 2013, Lieutenant Colonel Chapman was awarded a Commendation for Distinguished Service for leadership in his role as an SAS Squadron Commander. Lieutenant Colonel Chapman is currently serving in Indonesia where he is attached to the Indonesian military as an Instructor at the Indonesian Command and Staff College.