A top former diplomat believes a smaller country like New Zealand needs to be as alert as others in times of global uncertainty.
LISTEN ABOVE: Larry Williams talks to the former head of MI6, Sir John Sawers, about current world uncertainties and tensions.
Sir John Sawers, the former head of MI6, said the prospect of a potential Five Eyes meeting in Queenstown this weekend is a good sign at a time when tension builds up on the Korean peninsula.
Sir John has told Larry Williams we are living in a turbulent world, and there are many issues that need to be factored into security and defence issues.
"There is a great deal of uncertainty in the world and nations large and small will have to be a bit more careful."