Dublin  - Ireland's largest political party Fianna Fail was set to launch its Yes campaign for the EU Lisbon Reform Treaty Monday.

The party's leader and Irish Prime Minister Brian Cowen was scheduled to attend the launch in the capital Dublin.

Ireland is the only EU country to vote in a referendum to ratify the reform treaty that replaced the EU constitution rejected by Dutch and French voters. The vote is scheduled for June 12.

On its website www. vote4europe. ie Fianna Fail lists five reasons why the Irish should vote for the Lisbon treaty: The reform treaty would make the EU more democratic, give it a more effective system of making decisions, would protect the rights of the union's citizens better, would better equip the EU and its member states to meet global challenges and would protect the interests of smaller states.

On Sunday, the Labour Party, an opposition party in Ireland's parliament, launched its Yes campaign. The reform treaty would strengthen the individual rights of European citizens and provide for greater openness and accountability regarding EU decision-making, the party's leader Eamon Gilmore said.

Meanwhile, support for the Lisbon Treaty in Ireland has recovered slightly in the past fortnight but over a third of voters remain undecided, according to a poll published by the Sunday Business Post at the weekend.

Support for the treaty among Irish voters now stands at 38 per cent, up three per cent from a similar poll two weeks ago. Opposition to the treaty now stands at 28 per cent, a drop of three per cent.

The only party in Ireland's parliament which supports the No campaign is the nationalist party Sinn Fein. The party has four of the 166 seats in parliament. (dpa)