Lisa Smith has been jailed for 15 months for being a member of the terror group, ISIS.
The former Irish soldier was convicted of the charge earlier this year following what was described as a 'novel and complex' trial before the non-jury Special Criminal Court.
At her sentence hearing a few weeks ago, her barrister pleaded for the 40-year-old mother of one to be spared a custodial sentence.
However, while the judges did give her a significant discount on the back of the mitigating factors in her case, they felt they had to mark what she did with some time in prison.