Depending on your background, there's a good chance you've never heard of our next speaker before today.
However, if you've ever been a member of the British SAS, the FBI or Nelson Mandela's bodyguard team then you may have taken part in his elite unarmed combat training.
Similarly, if you've spent time in Iraq or Afghanistan as an aid-worker our guest today may have been involved in providing you with security escorts as you travelled covertly through the streets of Baghdad and Kabul.
Alternatively, if your life hasn’t been quite so combative, perhaps you’ve studied at Cincinnati Christian University where one of his books is required reading for Applied Psychology students.
Likewise, if you've completed Executive Education at Harvard University, you may have crossed paths with him in the corridors of the John F. Kennedy School of Government. Or, perhaps you've seen him interviewed on Sky News, Sunrise or the ABC's Midday Report.
Or perhaps you’ve never heard of him . . . until now.
Ladies and gentlemen, please welcome to the stage . . . Robert Redenbach.
