1. Each Member State shall take the necessary measures to ensure that travelling to a country other than that Member State for the purpose of committing, or contributing to the commission of, a terrorist offence as referred to in Article 3, for the purpose of the participation in the activities of a terrorist group with knowledge of the fact that such participation will contribute to the criminal activities of such a group as referred to in Article 4, or for the purpose of the providing or receiving of training for terrorism as referred to in Articles 7 and 8 is punishable as a criminal offence when committed intentionally.
2. Each Member State shall take the necessary measures to ensure that one of the following conducts is punishable as a criminal offence when committed intentionally:
(a)
travelling to that Member State for the purpose of committing, or contributing to the commission of, a terrorist offence as referred to in Article 3, for the purpose of the participation in the activities of a terrorist group with knowledge of the fact that such participation will contribute to the criminal activities of such a group as referred to in Article 4, or for the purpose of the providing or receiving of training for terrorism as referred to in Articles 7 and 8; or
(b)
preparatory acts undertaken by a person entering that Member State with the intention to commit, or contribute to the commission of, a terrorist offence as referred to in Article 3.