Sinn Féin says it will lead a robust 'No' campaign in next year's referendum on the Lisbon Reform Treaty.
Sinn Féin says it is opposing the treaty in a defence of sovereignty, civil liberties and neutrality.
The Taoiseach revealed today that the issue will be put to the public in the first half of next year.
An information campaign will be launched here after the treaty is signed next month.
Sinn Féin's Mary Lou McDonald says the treaty will not benefit Ireland.