Around 100 Gardai and Irish soldiers are being trained to fight Islamic State and other terrorist groups.
The elite counter-terrorism units have significantly increased their training to deal with the threat of Jihadi fighters.
Members are being drawn from the Garda Emergency Response Unit and the Army Ranger Wing.
It comes as the terror threat here was raised from low to moderate.
Meanwhiel the US government has issued a global travel alert for its citizens.
It's warning them to avoid crowded places, saying attacks are being planned in several regions by groups like Islamic State.
The warnings are focused on the transport system as millions of American's will be travelling for thanksgiving on Thursday.
