The Irish Anti-War Movement has said it plans to escalate its campaign after the success of its march in Dublin at the weekend.
"The anti war movement will continue to escalate its campaign. If the Government think Saturday was the end of the story they are sadly mistaken," said Richard Boyd Barrett, chair of the Irish Anti War Movement.
The anti-war lobby groups are seeking a meeting with the Taoiseach to discuss Ireland's stance.
Meanwhile the campaign will be brought to Shannon on March 1 to protest against any use of the airport by US military personnel.
The Irish Anti-War Movement also plans protests nationwide in the event of the war beginning. "If an attack takes place we are calling for protests in every city and town in the country at 6pm on the evening of any attack," said Mr Boyd Barrett.