David Cameron is telling his audience in Glasgow that having the Trident nuclear deterrent is the "best insurance policy that you can have that you will never be subject to nuclear blackmail".
It took three questions to get on to the subject of cuts, with the Prime Minister saying that "defence can't be exempt altogether from difficult decisions".
He says that the new aircraft carriers, Typhoons and other Army kit will be best in the world despite the cuts.
More top news
After sunny skies for many of us through much of the week, all change in the next 24 hours.
Brendan Rodgers has been sacked by Liverpool after the 1-1 Merseyside derby draw with Everton
As the party says it represents the working public, thousands of anti-austerity demonstrators show they don't quite see it that way.