My answer will be very brief. The major difference that has emerged over the past few years is that Canada itself has become a target because of the new weapons available to Russia and China and that the Arctic as such is now a geostrategic issue.
So it is not just a matter of renewing NORAD, but also of completely redesigning how data is shared within our defence system and within the Canadian Armed Forces. The command and control system must be reviewed across our entire continental defence system and our armed forces.