Watch the full interview with the Prime Minister from tonight's programme.
Mr Cameron confirmed that Wales will host the 2014 Nato Summit, an event that he described as "a great moment for Wales to advertise its modern and economically brilliant face to the world".
He also said that an announcement on devolved powers for Wales will be made on Friday.
More top news
The grass pollen season is on the rise. We have moderate levels today but these will fall as the weather turns unsettled!
Most of us will have anther beautiful day today, but there is change on the way! Cloud and rain will push in to the east later!
A joint charity initiative is urging workers in Wales to leave the office at lunchtime to help protect their wellbeing.