"The gardai have agreed to the march and we've given them two dates to choose from . . . the last Saturday in September and the first Saturday in October, " Frazer said.

"We will be marching down O'Connell Street and past the GPO, the same route as we planned last year until we were disrupted." On that occasion, republican protestors rioted for hours, causing millions of euro worth of damage and disrupting city centre trading.

"About 700 people marched last year but there will be around 1,500 in the autumn, " Frazer said.

"Our last march was too small and that made us vulnerable. There was a lot of women and older folk. This time, the younger men won't be staying at home. We could bring even more people down if we chose, but we don't want to have the Twelfth of July in Dublin city centre."

Frazer said the Rev Ian Paisley would be invited: "Dr Paisley has no trouble visiting Dublin these days and patting Bertie Ahern on the back, so maybe he would now like to come down with the people who suffered."

Paisley is likely to decline.

Frazer will also be asking DUP MP Jeffrey Donaldson and Ulster Unionist Assembly member Danny Kennedy, to address marchers outside Leinster House.

When asked if the demonstration was irresponsible and provocative, Frazer said: "We didn't cause the trouble last time. It wasn't good but it hardly compares to murder in Northern Ireland for 35 years."

Frazer said the march might be cancelled if the Taoiseach Bertie Ahern agreed to meet IRA victims from border areas. "He has met everybody . . . republican victims and Protestants like Raymond McCord whose son was killed by loyalists . . . but not us.

"We have questions for him about border security during the Troubles and Garda collusion with the IRA. Bertie hops in from Dublin to Northern Ireland every now and again but always avoids us.

What's he afraid of?"

Frazer said ex-British soldiers injured in the Troubles and relatives of those killed would be travelling from England for the march. He said he'd also spoken to the family of a guard shot dead by the IRA during a bank robbery.