Sir Emyr Jones Parry has sat at the top table at some of the great political discussions of our time - as the UK ambassador to NATO and the United Nations and at the Foreign Office.
Now he is questioned by the Peers, Peter Hain and Dafydd Wigley, as they continue their series of interviews for BBC Radio Wales.
Because as Hain and Wigley say int their introduction to the programme, we live in changing times.
With Donald Trump in the White House and the Brexit talks under way, you would be excused for thinking a new world order is emerging.
And Hain and Wigley were anxious to get the views of Sir Emyr whose perspective comes from having had front row seats at some of the major global events for more than a generation.
He was at the heart of diplomacy in Europe, at NATO and in America.
Sir Emyr was also chairman of the All Wales Convention which reviewed Wales's constitutional arrangements so he offered insights on how events beyond Wales might affect this country's future. Show less