An expert has told RTE's Prime Time that sanctions imposed against Russia by the West will not stop Russian President Vladimir Putin as he moves troops into Ukrainian territory.
Dr Alexandra Vacroux of Harvard's Davis Center for Russian and Eurasian Studies said she is doubtful that the sanctions announced will impact Putin's advances.
She said: "The sanctions are not going to stop the Russians. One of the things that Putin said in his speech yesterday is that 'you're going to sanction us no matter what.' So it makes no difference what we do.