How can unionism best respond to nationalism's big push to mobilise the United Ireland narrative?

Between the political parties, the Taoiseach shared island initiative and the conversations promoted by the Ireland's future organisation,

there's a lot of talk about a border poll and the possibility of real constitutional change.

Meanwhile, unionism's critics, internal and external, say it's failing to

sell the positive benefits of the union and the reasons for that, of course, are many and varied.

So what chance is there that Arlene Foster's recently launched Together UK Foundation could turn out

to be a game changer? That's what we're discussing on this week's Red Lines

and one of Together UK's board members

is sitting right beside me.

Sheila Davidson, we've known each other for a very long time.

Why have you decided to get involved in this venture?

Well, first of all, it is a venture.

It's not a political party and I want to make that very, very clear.

Anybody that's involved in it, and we call ourselves a very broad church because that's what it is.

I mean, at the launch we had in London very recently, we had people there from Labour, from Conservative Party.

We had people there that from Asian backgrounds that were journalists in India, that sort of thing.

So there's a very, very broad church of people who really do believe that a United Kingdom is a very

positive, strong and, I suppose, powerful voice that needs to be promoted.

So what we are in the foundation is kind of a group of people, you know, we're not trying

to be something, you know, powerful in the sense of a presence in the political field.

But what we do want to do is to make sure that whenever the debate is happening,

that there is information out there that, obviously in favour of the union,

...